That's a REALLY tough one my friend. Been watching for so many years now it's hard to pick, and I'm sure it would change day to day.
If I put my hand in a jar it would be one of these guys:
1. Delgado
1. Joey
1. Donnie
1. Carter
1. Doc
1. Robbie
1. Jesse
1. Georgie B
1. Devon
1. Kelly
1. Crime Dog
1. Terminator
1. Tony
1. Davie S
1. Troy
1. Eddie
1. Barney
The Jays are now first in the MLB in average, OBP, and hits. Also second in 2B's and third in OPS. Now this is how you win games. Imagine if they hit more dongs and Georgie and Tony Taters were healthy?