[Morgeruat]

I would have to nominate the Todd MacFarlane spiderman years for artwork. The man did some amazing things for Spidey, most notably evolving the costume from the original art of Romita which had been pretty standard for all the artists up until MacFarlane took over the book. He also borught in some heavy hitters like Venom, Carnage and a few others (I think the Demogoblin and Dopplespider which looked cool, even if they were rather lame in execution).