What do you mean? Because he's kind of overconfident and arrogant? Yeah, everyone knows that, but the guy came to fight every time, you didn't often see him lay and pray, like GSP has done so much lately.
GSP is talented though, but Hughes way more exciting to watch in his prime IMO. Only welterweight Hughes didn't beat was Miletich and that was only because Miletich was mostly training by then and was also Hughes' trainer for most of his career.