I'll go with Melvin Mora, but only because I am a homer
Someone who probably won't get a mention on here is Orioles reliever B.J. Ryan.
Code:
Split AB H 2B 3B HR RBI BB HBP SO SB CS BAA OBP SLG OPS
vs. Left 48 2 0 0 0 2 5 0 24 0 0 .042 .130 .042 .171
vs. Right 112 28 5 1 0 14 15 0 37 3 0 .250 .333 .313 .646
He is absolutely LIGHTS OUT against lefties, and very good agaisnt righties. Giambi called him the toughest pitcher he has faced last year. SHould be on the team.