Paul Gilbert (guitar for Mr. Big/solo) 5

Excellent and versatile. He is one of the best guitarists in the world, and can go from epic riffs like Green-Tinted Sixties Mind and the G3 Jams through mushy and tight-jeaned ballads like To Be With You right through to non-serious stuff like Get Out Of My Yard and Lay Off The Morphine. Very few can beat him.