Thing is, that speculation, if it does exist, is based off of absolutely nothing of merit within the actual pages. I mean, where on earth on the printed page could one get the sense that he will end up a more developed hero than Diana? The only indication thus far is that he wants to learn and help as she does and that she is willing to teach him. Where in that there is to glean that he'll become better than her is mind-boggling at this stage. It can only be born from a "assume the worst even without any evidence, because I hate this character and want to hate him even more" state of mind at the moment.