If you must have a baseball game that features the latest player rosters and you're bound to the old PlayStation, MLB 2003 is the best and only choice.
NBA Hoopz
While still fun in head-to-head situations, the few added features can't mask the fact that NBA Hoopz is basically the same exact game as last year's NBA Showtime.
3D Baseball
This is by far the best-looking baseball video game to date.
Triple Play 2000
Triple Play 2000 is a welcome addition to the PlayStation baseball lineup that everyone, even those who weren't fans of previous Triple Play games, should check out.
Major League Baseball 2K7 (X360)
MLB 2K7 returns for the latest season, offering improved player models and animations, as well as new gameplay features and of course updated rosters.
Score: 7.8
Major League Baseball 2K6 (X360)
Major League Baseball 2K6 offers new features and an exclusive MLB license for this season.
Score: 6.8
MLB 2006 (PS2)
989 Sports ushers in the 2005 baseball season with a new installment in its baseball simulation series. MLB 2006 features a variety of gameplay enhancements, such as "branch point technology," which provides smoother fielding transitions and baserunning; a fielding zone that matches a player's attributes with your skill level; and a "pitcher confidence marker" that helps determine your ability to hit spots in the strike zone.
Score: 8.6