I give a lot of credit to Stuart Immonen as an artist. Sure, he's talented and can draw some really incredible stories, but if you've read his blog for any length of time, it's easy to see that the reason why he's so good is because he continuously works at improving his ability. He spends a lot of time thinking about and considering capital-a Art, and how that may or may not be applicable to the commercial art he produces in whatever comic(s) he's working on this month. He's willing to try relatively significant experiments in his comics and he's one of the few comic artists working in the business today who doesn't always fall back on a singular personal style. He's constantly adapting his linework and layouts to serve the story he's trying to tell. Stuart's not the only one doing this, to be sure, but it definitely seems to be top-of-mind for him more frequently than for a lot of other people.
The guys working on Atomic Robo evidently talk about the same types of things among themselves, too. They recently posted a list of five rules they constantly follow in creating each issue. Excellent rules, all, but if I might pull out a particularly memorable quote:
I mean, come on, 99 times out of a 100, there is no reason at all to frame a panel from the perspective of a girl's ass. Grow up already.
I love these guys!