I like Smallville, but I think the central character the series is built around is a complete and totally clueless moron.
Heros usually ARE the least interesting character in a story (show, book...) <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> It's not always like that, but it's very often the side characters that make (the difference in) a show.