Well my favorites in order are:
Criss Angel (he was the one that really got me interested in magic after seeing the quarter in soda can illusion)
David Blaine (I loved seeing his levitation and the different effects he did when he first came out)
Penn & Teller (I think they're amazing and even though they exposed the cups & balls I still think they're amazing)
Jay Noblezada (I have most of the stuff he's done and I think he's a great teacher)
and finally Paul Harris (he's done so much stuff and he's done a lot of Paul Harris Presents effects as well that I've got that are amazing including FLOW which is totally amazing)
and on my list after my top 5 would be:
Cyril Takayama (I loved seeing this routine on this link
http://www.youtube.com/watch?v=iPXaEOWApu0 it is totally amazing and if I ever get enough money to buy that I'm buying it in a heartbeat)
Ricky Jay (the man is a sleight of hand GOD especially when he does his Alaskan Poker demonstration)
Huron Low (Fire In The Hole is totally amazing and it kills when you do it)
Richard Sanders (I've loved everything he's done and I can't wait to get Tagged)
Alvo Stockman (I loved Postmentalism)
and for non-magicians (I don't know if these guys would be considered magicians because they're XCMers and I don't know if XCM would be considered magic)
Devo Vom Shattenreich (the stuff he's come up with is totally amazing)
Jerry Cestkowski (there's a reason he's been named "The Flourishman")