If Irredeemable is evidence, I'd argue they're equal. Waid is doing some amazing stuff here, IMHO. This could have been a trite 'what if Superman went eeeevvillll' story...but instead its much more interesting.
The more we find out about the Plutonian, the more we understand what's made him go loony. Although the premise of 'Superman gets pissed off because people say bad things about him on the Internet' is damned funny.