I half-agree. I still give some props for trying but he's not as good to watch on a tennis court as RF, Safin, most of the new balls guys and he's nowhere near the charisma of some of the other dudes. Still, he's better than RN.
I prefer Rafael Nadal, he doesn't come across as smarmy and smug. He can be completely obnoxious, like the Rosol match, but I prefer someone who doesn't crave love and attention.
Roddick is a staple for one of those guys who's an obnoxious bully against lower ranked opponents, but off court he has that way about him that is just naturally funny and deadpan, whereas Djokovic is obviously forcing the humour, which to me is counter productive.