Vegard Tveitan, Alexi Laiho, Christofer Johnsson, Yngwie Malmsteen, Joey DeMaio, they all float my boat off the top of my head. Its hard to classify a "guitar hero" because its all conjecture. A lot of the people listed as greats like The Edge and Jimmy Page I dont rate that much. I think a lot of these "greats" lists are formulated by middle aged men in various stages of mid life crisis attempting to remind themselves of and recapture a bit of their lost youth while viewing the players of the past through rose tinted glasses. Blind, slavish faith to a band they loved when younger.
Im sure its inevitable that well all go through that in the future.