this is not a song solo btw, its just to entertain the audience..not all ppl appreciate the techniques while hearing but mostly they appreciate how good is the tone and how fast the solo is...and what techniques your talking about you mean tapping Ah Nh and such things...i will ask you a question..do you think guitarist like slash cant do such things while his playing very simply..i heard solos with all kinds of techniques but they sound shit, not impressive its like somone say "hey, look i know how to play guitar"...if a solo entertain me then its very good and the successful guitarist is the one who can play such solo's
btw i forgot to mention paul gilbert & eddie van halen in the list they are one of the best guitarisrts ever