I mean, 3 bloody seasons of Peter finally letting his balls drop and he's about to open up ass kicking town to a population of 5, and they take his powers from him! Its like watching a bad soap opera!
Mohinder, although a strange transformation, I can kinda dig. I like the characters that act like dicks

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Hiro is just fucking retarded. He acts like a 5 year old half the time. I promised never to go back in time! Oh just this once ... more! Its just sloppy plot progression. They need to hire the guys that wrote Avatar. They know how to write a story without bullshit.
My new fave Adam bites the bullet. Thats death worthy. Claire is just a stupid bitch and if She and her family (Including Noah) got killed off the whole show would be better for it.
The one saving grace is Sylar. Far from the complete idiot in Season one, he's actually shown reasonable character growth and a range of acting abilities. I am actually amazed the same people are writing him. He's probably the only reason I have kept watching this far.