Below are the 25 Groups.
You must choose exactly one player from each group and you must use the season listed. There is no salary cap. The hitter's batting average, on base and slugging percentages are listed in the first three columns for easy reference. For pitchers, it's whip, oav and hr/9. I didn't always choose the players best year for a player and certain players were excluded (i.e., Hornsby) in order to try and make each group of players fairly equal.
Fielding ratings updated
Batters
Group 1: Catcher
.325 .393 .590 Campanella, Roy 1951 (B/B+/B+)
.322 .459 .515 Cochrane, Mickey 1933 (B/D+/B-)
.362 .428 .617 Dickey, Bill 1936 (C/B/C+)
.339 .404 .630 Hartnett, Gabby 1930 (B/B/B-)
.347 .429 .507 Mauer, Joe 2006 (A/A+/A+)
.346 .400 .606 Piazza, Mike 1995 (B/A+/D+)
Group 2: First Base
.368 .451 .750 Bagwell, Jeff 1994 (C+/B-)
.361 .487 .662 Cash, Norm 1961 (B/C)
.356 .449 .703 Foxx, Jimmie 1933 (C+/C-)
.363 .465 .706 Gehrig, Lou 1934 (B+/C-)
.320 .453 .656 McCovey, Willie 1969 (B-/A)
.299 .470 .752 McGwire, Mark 1998 (C+/A-)
Group 3: Second Base
.359 .421 .497 Carew, Rod 1975 (C/B-)
.372 .438 .493 Collins, Eddie 1920 (B/B+)
.371 .458 .520 Gehringer, Charlie 1937 (A-/B)
.344 .379 .518 Lajoie, Nap 1903 (C/A+)
.327 .466 .508 Morgan, Joe 1975 (A-/A-)
.342 .432 .528 Robinson, Jackie 1949 (B/B-)
Group 4: Third Base
.363 .461 .588 Boggs, Wade 1987 (B+/C-)
.335 .436 .585 Brett, George 1985 (A-/B+)
.391 .547 .446 McGraw, John 1899 (B/C-)
.314 .422 .645 Rodriguez, Alex 2007 (B+/D+)
.336 .422 .613 Rosen, Al 1953 (B+/A-)
.316 .435 .644 Schmidt, Mike 1981 (B/A-)
Group 5: Shortstop
.388 .473 .508 Appling, Luke 1936 (C/A)
.355 .453 .534 Boudreau, Lou 1948 (A-/A)
.372 .434 .599 Garciaparra, Nomar 2000 (B/B-)
.401 .472 .488 Jennings, Hughie 1896 (C/A+)
.297 .403 .589 Petrocelli, Rico 1969 (A/B-)
.363 .427 .505 Wagner, Honus 1905 (C/A+)
Group 6: Greatest Hitter of All-Time Outfielder
.328 .515 .863 Bonds, Barry 2001 (C/D+)
.362 .609 .812 Bonds, Barry 2004 (B-/D+)
.376 .530 .847 Ruth, Babe 1920 (D/C)
.378 .512 .846 Ruth, Babe 1921 (C/B)
.393 .545 .764 Ruth, Babe 1923 (C+/A)
.406 .551 .735 Williams, Ted 1941 (D+/C-)
Group 7: Hall of Fame Outfielder
.346 .412 .673 Dimaggio, Joe 1937 (C-/A+)
.306 .431 .611 Mantle, Mickey 1955 (A/A)
.345 .411 .667 Mays, Willie 1954 (B/A+)
.355 .449 .614 Musial, Stan 1951 (C/B+)
.387 .419 .599 Simmons, Al 1925 (C/A+)
.363 .441 .533 Speaker, Tris 1913 (D/A+)
Group 8: 400-Hitting Outfielder
.409 .456 .584 Cobb, Ty 1912 (D/A-)
.404 .500 .617 Delahanty, Ed 1895 (C/B)
.404 .523 .528 Hamilton, Billy 1894 (B/A)
.403 .481 .632 Heilmann, Harry 1923 (C-/C+)
.408 .468 .590 Jackson, Joe 1911 (C/C-)
.424 .464 .539 Keeler, Willie 1897 (B/D+)
Group 9: Designated Hitter
.327 .464 .595 Martinez, Edgar 1996
.332 .445 .621 Ortiz, David 2007
.324 .420 .630 Palmeiro, Rafael 1999
.328 .436 .625 Thomas, Frank 2000
Group 10: Backup Catcher
.358 .404 .486 Clarke, Nig 1906 (B/C+/B)
.353 .406 .525 Hargrave, Bubbles 1926 (B/D/B)
.399 .444 .554 Padgett, Don 1939 (C/C-/D+)
.347 .375 .667 Rodriguez, Ivan 2000 (A/A/A+)
Group 11: Backup Corner Infielder
.345 .426 .655 Clark, Will 2000 (1b, C+/C)
.370 .500 .539 Joyce, Bill 1896 (3b, D/C+)
.358 .449 .632 Teixeira, Mark 2008 (1b, A/A)
.336 .399 .647 Williams, Matt 1995 (3b, B/A+)
Group 12: Backup Middle Infielder
.357 .439 .573 Furcal, Rafael 2008 (ss, B/D)
.342 .375 .446 Larkin, Barry 1989 (ss, A-/A)
.347 .413 .584 Shumpert, Terry 1999 (2b, A-/D)
.320 .455 .417 Stanky, Eddie 1948 (2b, B/A-)
Group 13: Backup Outfielder
.396 .489 .743 Ramirez, Manny 2008 (B/D-)
.368 .423 .668 Russell, Reb 1922 (C/D+)
.368 .436 .564 Stengel, Casey 1922 (C/B+)
.359 .391 .680 Winn, Randy 2005 (A/A+)
Group 14: Old Favorite Cheapies (before the update)
Bream, Sid 1985
Foli, Tim 1977
Maddox, Garry 1975
Pitchers
Group 15: Pedro or Maddux
0.81 .197 .34 Maddux, Greg 1995
0.74 .167 .71 Martinez, Pedro 2000
Group 16: Deadball Pitchers
0.84 .191 .07 Alexander, Pete 1915
0.87 .202 .03 Brown, Mordecai 1909
0.91 .196 .05 Johnson, Walter 1912
0.81 .197 .06 Joss, Addie 1908
0.83 .200 .07 Mathewson, Christy 1909
0.82 .187 .12 Walsh, Ed 1910
Group 17: 20s & 30s Pitchers
0.98 .244 .21 Adams, Babe 1920
1.08 .229 .11 Blanton, Cy 1935
1.01 .222 .29 Braxton, Garland 1928
1.08 .229 .31 Grove, y 1931
0.98 .227 .17 Hubbell, Carl 1933
1.02 .213 .32 Vance, Dazzy 1924
Group 18: 60's, 70's, 80's ies
0.95 .189 .55 Blue, Vida 1971
0.99 .206 .44 Carlton, Steve 1972
0.95 .193 .43 Guidry, Ron 1978
0.98 .205 .53 Koufax, Sandy 1966
0.84 .182 .79 McNally, Dave 1968
0.94 .209 .46 Tudor, John 1985
Group 19: Modern Day Starters
0.94 .220 .31 Brown, Kevin 1996
1.03 .213 .31 Clemens, Roger 1997
1.05 .201 .50 Johnson, Randy 1995
0.98 .211 .49 Lowe, Derek 2002
0.92 .192 .95 Santana, Johan 2004
0.95 .200 .61 Schmidt, Jason 2003
Group 20: Low Inning Starters
0.77 .161 .00 Carlos, Cisco 1967
0.83 .178 .00 Maddox, Nick 1907
0.78 .158 .00 McQuillan, George 1907
0.72 .110 .36 Milacki, Bob 1988
0.86 .153 .00 Niggeling, Johnny 1943
0.73 .183 .00 Northrop, Jake 1918
Group 21: Ultra Stud Closers
0.61 .160 .25 Eckersley, Dennis 1990
0.69 .133 .22 Gagne, Eric 2003
0.67 .165 .51 Rivera, Mariano 2008
Group 22: y Closers
0.82 .143 .38 Charlton, Norm 1995
0.88 .194 .45 Howe, Steve 1994
0.86 .169 .37 Ryan, B.J. 2006
0.78 .135 .60 Wagner, Billy 1999
Group 23: Righty Closers
0.79 .158 .40 Nathan, Joe 2006
0.78 .167 .40 Papelbon, Jonathan 2006
0.70 .153 .75 Putz, J.J. 2007
0.72 .151 .70 Saito, Takashi 2007
Group 24: Workhorse Closers
0.96 .191 .46 Eichhorn, Mark 1986
0.87 .198 .35 Fingers, Rollie 1981
0.95 .170 .61 Gossage, Rich 1977
0.94 .194 .38 Hernandez, Willie 1984
0.86 .183 .42 Sutter, Bruce 1977
0.83 .177 .69 Wilhelm, Hoyt 1965
Group 25: Top Setup Guys
0.76 .183 .45 Betancourt, Rafael 2007
0.83 .150 .00 Devine, Joey 2008
0.71 .170 .53 Meredith, Cla 2006
0.93 .155 .00 Murphy, Rob 1986
0.84 .187 .52 Rhodes, Arthur 2002
0.79 .162 .34 Soriano, Rafael 2003
---> Pick exactly one player from each group