The Bigs is a very good PS2 baseball game, if not the best one of 2007.
Pitching: the ability to pitch faster (120+ MPH instead of 90+ MPH), a bigger throwing range, and higher stats.
Batting: the ability to hit a lot harder. Use power (square) and your about 95% going to get a home run. If you use the power-up and get a home run it will most likely hit a billboard or post, sending sparks flying everywhere.
Fielding: the ability to run faster, the ability to jump higher on the wall, and raised stats.
With all the abilities of this game, I give The Bigs for the PlayStation 2 an 8.5 out of 10.