I'm still watching, but..... yeah.....
There's an EW review that points out many of my own thoughts....
Here's just one quote:
"All too often, the characters behave not as they should, but as the plot needs them to"
That just about says it all... why didnt Peter time dump a day before Nathan's speech and just try to talk him out of it? Why does HRG guy leave classified level5 files on the kitchen counter?
and Hiro with his destiny and quest (back to my nit that Hiro is sometimes borderline retarded)-- why not start some super-power research center? Why would Hiro want to start another quest after all the death, hurt and pain he's seen? Did he already forget about his dead waitress? Why would Hiro's father grant Hiro access to a file he didn't want him to see? (maybe you're saying, "Hiro's father knew Hiro wouldn't obey that"... well, if so, why not just be direct about it? Why leave it to chance that Hiro just might obey the warning?
EW says it better than I:
"''I don't want to be a sentinel. I want to be a hero,'' says Hiro Nakamura, a man who has endured much — the deaths of family members, the loss of his first true love, the precipice of Armageddon — and should know better. That's what experience does: It teaches us. Instead, with his late father's company at his beck and call, and the world at his fingertips, he's pouting like a bored rich kid with a dead DS. Our greatest heroes of fiction are that great because they never want to be heroes. They don't want glory; glory is forced upon them. They rise to a challenge, not recklessly wobble about looking for one. And when their quest is done, they'd be pleased as punch to return to a normal life. All they want is a normal life. There's a fine line between looking for a destiny and coming off like a petulant lad with ADD.
And, speaking of knowing better, if Hiro's dad didn't want what was in the safe to be molested, he never should've told Hiro about it. Or left the access button on his desk. Or made the combination Hiro's fingerprint. Or, more to the point, put the most important thing in the world in that safe. Kaito Nakamura was a smart cat who shouldn't have been prone to doing dumb things. (And why are fathers in this show incapable of keeping their goodies hidden? Kaito leaves his Ragnarok formula in the wall safe, and Noah Bennett leaves the files on the worst superpowered criminals in the world...in a cardboard box in the kitchen. Gadzooks.)"
Why would Mohinder inject himself with a serum he knows could make him "Exploding Man" or "Dead Black Eyes Person"?
oh, and why is Nathan still all religious when Linderman shows up and says he cured him? Also, that politician says "I think I found our candidate" to Tracey (NuNikki), and then in ep2, NuNikki is trying to convince politician to partner with Nathan -- which was his idea-- continuity anyone?
And all these things happen - or don't happen - because Tim Kringe needs it to be that way for the plot to keep moving.
I do enjoy Peter, Elle and Mama Petrelli. And the actor that plays Sylar seems to be the only one that knows how to "play" with what he is given. I enjoyed his "I don't eat brains" line. Sylar, as a character. has reached a dead end-- but Zachary Quinto makes him playfully watchable at times.
Sylar is probably the best example of "changing personality to fit story purposes". He's an all-purpose badguy with inconsistent motives. Hell, his motives and drives have changed so many times, it's almost a joke that the character can't recall them sometimes.