As for Artist go there are very few people, would call good, and even fewer that I would rate master. As far that goes my favorite they as this Jim Steranko, Jack Kirby, Tony DiTerlizzi & Alex Ross. Jim Steranko is one of the few that class as master and even a true master , if one think about it one of his cover is sought as much non comic fan. as for artwork of 1960's he and Andy Warhol are among the best . In alot of way he took comic book art to a new leavel that is why I call him a master.