I say kill off all the characters except HRG, just take away most of his memory and work from there. All the characters are useless and pointless.
Peter - while he has had some badass moments in the future, the future is 'always changing' and he becomes more and more of a *****.
Nathan - the biggest flip-flopper on the show. Not his fault, but this characters define how bad the writers are.
Sylar - Yes, we all get it. Sylar kills people. He's a bad guy, a good guy, a cocky guy. No one cares anymore and I don't give a rats ass who his father is.
Matt - Once again it seems as if the writers can't do this show without showing the future so they give one of the weakest characters the same power as two other dead guys. Cool.
Claire - Shes hot, she's eye candy. Other then that...USELESS. Go jump some more scaffolding.
Nikki/Tracy - No comment. I never found her interesting.
Mohinder - Go back to some lame monologue you do in the beginning of the show.
Hiro/Ando - I hope the hunter executes them so I never have to see their lame, bad acting asses on this show ever again.
I'm 98% sure I can writer a better season of Heroes then these writers. This show has so much potential and was awesome during season one. I'm not sure what happened that made the writers so terrible.