I'll make this simple.
1. Tommy Emmanuel: Seen him twice so far and he can play anything he wants to. He just lays it out on stage in front of everyone. This summer he'll have been playing guitar for 50 years!!! He fast, he's got style, he's got phrasing, he can improv. and he can write.
2. Emppu Vuorinen: From the scandinavian band Nightwish. He can shred with the best of em' but he knows when to stop. Everything he plays just goes with whatever song he plays. Everything he plays just makes sense and leaves me playing it over and over again.
Those of you who don't know him should check out this link: http://youtube.com/watch?v=gBCEXM9U8Z4
3. John Petrucci: He's amazing and he's so melodic and skillful. He can play everything fluently and he's got the speed, phrasing and writing skills.