I have now seen three episodes of Heroes season 2. Holy crap, this makes Fringe look like the best show ever. I really, really liked most of season 1 (some of the episodes, like Company Man, the Days of Future Past episode, flat-out blew me away). But thus far the only thing I like in season 2 is Nathan Petrelli being so down and out (and I think he's been in the show for about 7 minutes). Everything with Claire and alien Superboy is painful, Nikki really has never done anything for me, and Peter's amnesia stuff is just. Bad. And in general, the new characters bore me.
Sylar showed up in the last episode, though, and I know Veronica Mars is coming, too. So that might help. Maybe.
I still plan on finishing it out because I'm a glutton for punishment.