It says I last visited this Forum on 26 August 2006 - the earth certainly spins faster when you get older!
Picking just three is difficult but here we go.....
Chick Corea - if only for his work with Gary Burton - I could listen to those two for hours
Bill Evans - the thinking man's pianist, who can grab my attention whatever he's playing
Herbie Hancock - I've never met the guy, but he always looks happy! And sounds good, of course!