These are the greatest MLB teams in the history of the sport. Rankings take into account historical legacy, championships won, hall of famers, and degree of sustained success across generations.
1) 
Yankees–Established in 1901, based in NY since 1903. 27 World Championships and 40 Pennants; 19 winning seasons this century
Yankees–Established in 1901, based in NY since 1903. 27 World Championships and 40 Pennants; 19 winning seasons this centuryLast championship: 2009
All-Time Win %: .569 (1st)
Total Hall of Famers: 42 (6th)
Noteworthy Stat: Has hit over 1,000 more home runs (15,909) than any other team
Current Payroll: $180,994,000
Defining Ballpark: Yankee Stadium
Defining Voice: Mel Allen
Defining Managers: Casey Stengel, Joe McCarthy, Joe Torre
The Legends: Babe Ruth, Lou Gehrig, Mickey Mantle, Joe DiMaggio, Yogi Berra, Derek Jeter, Mariano Rivera, Whitey Ford, Phil Rizzuto, Thurman Munson.
2) 
Cardinals–Established in 1881. 11 World Series titles and 19 Pennants; 17 winning seasons this century
Cardinals–Established in 1881. 11 World Series titles and 19 Pennants; 17 winning seasons this centuryLast championship: 2011
All-Time Win %: .520 (4th)
Total Hall of Famers: 44 (tied for 4th)
Noteworthy Stat: Has had more players (2,092) than any other team
Noteworthy Stat: Has had more players (2,092) than any other team
Current Payroll: $156,479,000
Defining Ballpark: Busch Stadium
Defining Voice: Jack Buck
Defining Manager: Whitey Herzog
The Legends: Rogers Hornsby, Stan Musial, Bob Gibson, Albert Pujols, Ozzie Smith, Dizzy Dean, Lou Brock, Red Schoendienst, Enos Slaughter, Bruce Sutter.
Defining Manager: Whitey Herzog
The Legends: Rogers Hornsby, Stan Musial, Bob Gibson, Albert Pujols, Ozzie Smith, Dizzy Dean, Lou Brock, Red Schoendienst, Enos Slaughter, Bruce Sutter.
3) Red Sox–Established in 1901. 9 World Series titles and 14 Pennants; 15 winning seasons this century
Last championship: 2018
All-Time Win %: .519 (5th)
Total Hall of Famers: 36 (tied for 9th)
Current Payroll: $207,499,000
Defining Ballpark: Fenway Park
Defining Voices: Curt Gowdy, Jerry Remy
Defining Managers: Joe Cronin, Terry Francona
The Legends: Ted Williams, Carl Yastrzemski, Jimmie Foxx, David Ortiz, Tris Speaker, Pedro Martinez, Joe Cronin, Jim Rice, Harry Hooper, Manny Ramirez.
4) 
Giants–Established in 1883, based in San Francisco since 1958. 8 World Series titles and 23 Pennants; 11 winning seasons this century
Giants–Established in 1883, based in San Francisco since 1958. 8 World Series titles and 23 Pennants; 11 winning seasons this centuryLast championship: 2014
All-Time Win %: .536 (2nd)
Total Hall of Famers: 57 (1st)
Noteworthy Stat: Leads all teams with 10,692 wins
Noteworthy Stat: Leads all teams with 10,692 wins
Current Payroll: $182,362,000
Defining Ballpark: Polo Grounds
Defining Voice: Russ Hodges
Defining Manager: John McGraw
The Legends: Willie Mays, Mel Ott, Christy Mathewson, Juan Marichal, Orlando Cepeda, Willie McCovey, Bill Terry, Carl Hubbell, Gaylord Perry, Barry Bonds.
Defining Manager: John McGraw
The Legends: Willie Mays, Mel Ott, Christy Mathewson, Juan Marichal, Orlando Cepeda, Willie McCovey, Bill Terry, Carl Hubbell, Gaylord Perry, Barry Bonds.
5) 
Dodgers–Established in 1883, based in LA since 1958. 7 World Series titles and 24 Pennants; 17 winning seasons this century
Dodgers–Established in 1883, based in LA since 1958. 7 World Series titles and 24 Pennants; 17 winning seasons this centuryLast championship: 2020
All-Time Win %: .527 (3rd)
Total Hall of Famers: 50 (3rd)
Noteworthy Stat: Leads all teams with an 3.54 all-time ERA
Current Payroll: $182,688,000
Defining Ballpark: Ebbets Field
Defining Voices: Vin Skully, Red Barber
Defining Managers: Walter Alston, Tommy Lasorda
The Legends: Jackie Robinson, Sandy Koufax, Duke Snider, Roy Campanella, Don Sutton, Don Drysdale, Pee Wee Reese, Jim Gilliam, Dazzy Vance, Zack Wheat.
Defining Managers: Walter Alston, Tommy Lasorda
The Legends: Jackie Robinson, Sandy Koufax, Duke Snider, Roy Campanella, Don Sutton, Don Drysdale, Pee Wee Reese, Jim Gilliam, Dazzy Vance, Zack Wheat.
6) 
Athletics–Established in 1901, based in Oakland since 1968. 9 World Series titles and 15 Pennants; 10 winning seasons this century
Athletics–Established in 1901, based in Oakland since 1968. 9 World Series titles and 15 Pennants; 10 winning seasons this centuryLast championship: 1989
All-Time Win %: .488 (18th)
Total Hall of Famers: 40 (tied for 7th)
Current Payroll: $77,927,000
Defining Ballpark: Oakland Coliseum, Shibe Park
Defining Ballpark: Oakland Coliseum, Shibe Park
Defining Voice: Bill King
Defining Manager: Connie Mack
The Legends: Reggie Jackson, Ricky Henderson, Catfish Hunter, Dennis Eckersley, Rollie Fingers, Lefty Grove, Bert Campaneris, Eddie Plank, Jimmie Foxx, Al Simmons.
Defining Manager: Connie Mack
The Legends: Reggie Jackson, Ricky Henderson, Catfish Hunter, Dennis Eckersley, Rollie Fingers, Lefty Grove, Bert Campaneris, Eddie Plank, Jimmie Foxx, Al Simmons.
7) 
Braves–Established in 1871, based in Atlanta since 1966. 3 World Series titles and 17 Pennants; 13 winning seasons this century
Braves–Established in 1871, based in Atlanta since 1966. 3 World Series titles and 17 Pennants; 13 winning seasons this centuryLast championship: 1995
All-Time Win %: .500 (13th)
Total Hall of Famers: 52 (2nd)
Noteworthy Stat: Tied with the Cubs for the oldest team still in existence
Current Payroll: $124,734,000
Current Payroll: $124,734,000
Defining Ballpark: Turner Field, Braves Field
Defining Voice: Ernie Johnson Sr
Defining Manager: Bobby Cox
The Legends: Warren Spahn, Hank Aaron, Greg Maddux, Eddie Mathews, Phil Niekro, Dale Murphy, Chipper Jones, Tom Glavine, John Smoltz, Andrew Jones.
The Legends: Warren Spahn, Hank Aaron, Greg Maddux, Eddie Mathews, Phil Niekro, Dale Murphy, Chipper Jones, Tom Glavine, John Smoltz, Andrew Jones.
8) 
Reds–Established in 1869. 5 World Series titles and 10 Pennants; 3 winning seasons this century
Reds–Established in 1869. 5 World Series titles and 10 Pennants; 3 winning seasons this centuryLast championship: 1990
All-Time Win %: .505 (9th)
Total Hall of Famers: 35 (tied for 10th)
Current Payroll: $97,276,000
Defining Ballpark: Great American Ballpark, Riverfront Stadium
Defining Ballpark: Great American Ballpark, Riverfront Stadium
Defining Voice: Marty Brennaman
Defining Managers: Sparky Anderson, Fred Hutchinson
The Legends: Pete Rose, Johnny Bench, Joe Morgan, Tony Perez, Dave Concepción, Frank Robinson, Barry Larkin, Ernie Lombardi, Eppa Rixey, Edd Rousch.
Defining Managers: Sparky Anderson, Fred Hutchinson
The Legends: Pete Rose, Johnny Bench, Joe Morgan, Tony Perez, Dave Concepción, Frank Robinson, Barry Larkin, Ernie Lombardi, Eppa Rixey, Edd Rousch.
9) 
Pirates–Established in 1882. 5 World Series titles and 9 Pennants; 4 winning seasons this century
Pirates–Established in 1882. 5 World Series titles and 9 Pennants; 4 winning seasons this centuryLast championship: 1979
All-Time Win %: .504 (10th)
Total Hall of Famers: 40 (7th)
Current Payroll: $115,961,000
Defining Ballpark: Three Rivers Stadium, PNC Park
Defining Voice: Bob Prince
Defining Manager: Danny Murtaugh
The Legends: Roberto Clemente, Ralph Kiner, Honus Wagner, Willie Stargell, Bill Mazeroski, Paul Waner, Lloyd Waner, Pie Traynor, Max Carey, Arky Vaughan.
Defining Manager: Danny Murtaugh
The Legends: Roberto Clemente, Ralph Kiner, Honus Wagner, Willie Stargell, Bill Mazeroski, Paul Waner, Lloyd Waner, Pie Traynor, Max Carey, Arky Vaughan.
10) 
Tigers–Established in 1894. 4 World Series titles and 11 Pennants; 8 winning seasons this century
Tigers–Established in 1894. 4 World Series titles and 11 Pennants; 8 winning seasons this centuryLast championship: 1984
All-Time Win %: .506 (8th)
Total Hall of Famers: 24 (16th)
Current Payroll: $136,489,000
Defining Ballpark: Tiger Stadium, Comerica Park
Defining Ballpark: Tiger Stadium, Comerica Park
Defining Voice: Ernie Harwell
Defining Manager: Sparky Anderson
The Legends: Ty Cobb, Hank Greenberg, Al Kaline, Charlie Gehringer, Hal Newhouser, Sam Crawford, George Kell, Harry Heilmann, Mickey Cochrane, Willie Horton.
Defining Manager: Sparky Anderson
The Legends: Ty Cobb, Hank Greenberg, Al Kaline, Charlie Gehringer, Hal Newhouser, Sam Crawford, George Kell, Harry Heilmann, Mickey Cochrane, Willie Horton.
Quick Facts:
–The Rockies lead all teams with a .274 all-time batting average but trail all with a 4.95 ERA. They are also the only team to not have had a single player inducted into the Hall of Fame.
–The Cubs lead all teams with 98,434 all-time runs scored and 192,394 hits.
–The Mets and Padres trail all teams with a .250 all-time batting average.
–The Phillies have the most losses (10,919) and are more than 250 more games under .500 (-1175) than the next worst team.
–Only two teams have failed to win a single pennant: the Nationals and the Mariners.
–Seven teams have failed to win a single World Series title: the Rangers, Brewers, Nationals, Padres, Mariners, Rockies, and Rays.
the nationals won the pennant and world series in 2019 — which should be accounted for as you have the dodgers 2020 championship mentioned