I'd say my vote goes to Mike Campbell. He's a guitar god, knows many styles, plays anything with strings (as well as drums, harmonica and piano) and is the only one I know who proved the Strat, Les Paul, Tele and SG players that "a Ric isn't a lead guitar" (or something like that).
This video shows what he can do with a 350 (yeah, John Biscuti, I forgot this one!
Don't get me wrong, I love Benmont Tench, too. He's a great pianist who can play anything with keys, but if I could choose one, it'd be Mike.
