Two from the '93 game in Baltimore:
Watching John Kruk vs. Randy Johnson. Possibly the single greatest at-bat in MLB history
Watching Mike Mussina warm up in the bullpen while Cito Gaston told the local fans to fuck themselves by bringing in Duane Ward instead of the hometown hero. Still will never forgive him despite my despising of Mussina.
Two others:
The game a couple years back when Torii Hunter robbed Barry Bonds of a homerun in the first, and when he came in Bonds lifted him up.
Finally, Blalock hitting that homerun last year off Eric Fucking Gagne to win the game for the AL.