Yeah, I think S3 ruined Sylar for a lot of people, myself included. It's clear the writers are keeping him on because of his popularity but they are running low on fresh ideas, unfortunately.

AGREED in regards to Adam. I LOVED him. He was so awesome and I totally thought he'd take Sylar's place as the Next Badass Villain. I mean, he's hundreds of years old. He's seen it all. He would have had cool stories and flashback scenes. But, noooo. He got a lame death at the hands of...Arthur Petrelli?

I actually enjoyed S2 (minus Hiro in feudal Japan).