I have been an avid baseball fan since I was a yuet. In fact, my brother and I used to design a new version each year . . . until we discovered Strat-O-Matic Baseball. Since then, its been yanking on perforated sheets and playing B-ball on the charts.
The best baseball simulation not on a hard-drive. It doesn't have the support Strat-O-Matic has for older teams, but is trying to release older teams each year. As for realism, this beats Strat-O-Matic hands down.
A little abstract, and completely void of any relationship to actual baseball teams or players--this little game (comes in one of those traditional pocket game bags) allows your imagination and inclination to be George Steinbrenner and Billy Martin (at the same time) come true.