We all marvel at the beautifully rendered and expressive images of Superman, but we tend to see more names on print pages than web pages. Stalwarts like Glenn Whitmore, Dennis Janke, and Carl Gafford (honestly it gets tough figuring out colorists in the years before him as they weren't often listed) have contributed time and again to some amazing pieces of art and I figure we'd discuss some of them.
So Bob Oksner... if you asked me to list my favorite creators, I'd probably wince and apologize to all the people I was going to leave out. But Bob Oksner would be one of the first few I made sure to mention. When he inked Swan or Garcia-Lopez, or did the finished lines himself, he'd use nice thick lines and emphasize loose, cartoonish features. It made for a very pleasant aesthetic. Superman art had a very subtle, unique style due to the consistency of Oksner and his pencilling associates in a certain period.
Jerry Ordway was a tour de force. In addition to writing and pencils, he sometimes finished his own art complete with inks and colors. The reprints I've seen online and in trades, to be honest, often fail to duplicate the depth and warmth of his work. This page, where some other uglies try to steal his cape, is a pretty solid example of his fully finished art with Whitmore colors . He also did some pretty killer painted work, and got even better at it during his Shazam run.