I think as far as art, HR Giger is one of my favorites. Though there are tons of great artists in the comic book industry, but some don't see that as legitimate art. However, in that case I think one of my favorites is Salvador Larroca, Bernie Wrightson or Terry Dodson (especially when his art is inked by his wife Rachel. They make a great team.
"That's the problem with drinking ... If something bad happens you drink in attempt to forget; if something good happens you drink in order to celebrate; and if nothing happens you drink to make something happen." -- Charles Bukowski