That episode was so great, I don't even know where to start...
I'm really, really happy about Hiro's storyline. For a few last episodes (and a huge part of the second season) I've been really bored with it, but now Masi shows his real comedian talent. I loved his childlish expressions, "Holy crap" was just hysterical, and the corn scene was superb!
I'm also glad about Peter/Nathan scenes. As much as I love seeing them together as loving brothers, it wouldn't be realistic if they haven't fought once in a while. Especially when they have a lot of issues that really need to be resolved. This argument scene was acted perfectly.
Sylar/Elle is also really good done, I liked how Elle tried to get "real" Sylar out of him, not a manipulated monster or agent, but just... man.
Yay! Claire's finally getting some guts! I loved this scene when HRG was teaching her "baseball"

It was very emotional... All that things they said were so harsh, I don't think we've ever seen Noah being so harsh with Claire.
Lines:
"I hate heroes" - it PWNs!
"Holy crap!"
"I'm a betrayer... And a liar and a thief and... I'm selfish. Well, honestly I don't understand why you keep me around!" - I felt really bad for Daphne and in the same moment I admired her honesty in those lines.
"We're all gonna die" - cracked me up

"The good new is - you've certainly got the strenght. The bad new is - you're clumsy, slow and obvious."
"-You're a puppet! - Excuse me?" Oh, I just loved how Nathan said that particular line!
"It hurts. I never thought I'd be able to hurt again. It sucks but it's wonderful."
"Tha corn will keep on coming" I love Ando gesture when he translated that to Matt

"Can universe get me a phone?":)
Oh, and something I noticed rewatching Claire/Noah training scene - I loved how camera's been circling around them. It certianly reminds of the planets circling around the sun - nice connection to the eclipse!