4/5.
It really really ****** me off how people can't see two feet in front of their face with this show, nor take the time to actually piece stuff together themselves.
1) It seemed forced that HRG would kill Ivan? Really? When we KNOW he still works with the Company, and they'd DEFINITELY find out his memory was wiped, which would obviously lead to the Haitian. The same Haitian that's been partners with HRG for years. The same Haitian that "wiped" Mohinder's memory (which the Company knows about) and then disappeared? And, according to the Company, HRG ALSO disappeared? Look at this from the Company's perspective:
a) Employee who doesn't want to give up daughter disappears.

Employee's partner is healed of a disease, and then disappears.
c) Russian Guy, who TRAINED Employee, winds up with his memory wiped. Which is something only Employee's Partner can do.
Oh yeah, it's totally farfetched that that would make them think of Bennet, right? Jesus..
2) Peter found the building fast? What did you want them to do? Show Peter getting a drink on the plane? Waiting in line for his luggage at the airport? Trying to speak French to the cab driver? It's a 42-minute show. THINGS NEED TO BE CONDENSED.
3) Kensei storyline. Let's imagine, for half a second, that where Hiro teleported to WASN'T 300 miles away. Maybe it was a patch of grass right outside White Beard's camp. Maybe Kensei noticed they went missing after the gun was fired and figured he should go looking for them. Should find out what happened. Then he sees it, just a few feet away, and goes to find White Beard about switching alliances. Not sold on that? Let's consider something here:
a) You love a woman. Not like. Love.

You have a guy who is a really, really good friend of your's.
c) You later find said woman, who you love, cheating on you with said friend.
d) You feel betrayed. Not just by your friend, but by this woman too, who you'd been risking everything for just to find her father.
e) Betrayal leads to hatred. You want to hurt them. You already know what both of them care about, which is the following, according to you:
i) Friend cares about space-time continuum and your woman.
ii) Woman cares about friend and father.
g) So what do you do? You set out to destroy all that.
If you don't see how that's a logical progression of events, you've either never had your heart broken, are not a man, or are stupidly illogical.
Now that that's cleared up, onto the timeline for that. Kensei switched sides awfully fast? I guess you didn't hear the line where Hiro says he's been looking for Kensei for HOURS. I'd think hours is enough time to make a deal with White Beard, wouldn't you? Hell, I'd say 20 minutes is enough, especially when both parties already agree on everything. Ever had a conversation with someone who agrees with everything you think?
YOU: I think A about X.
GUY: I agree.
END OF CONVERSATION
4) Oh noes, it was selfish of Claire to use her and her boyfriend's powers to avoid getting caught. Hold on a second, where does it say Claire can't be selfish? Where does it say anyone in the entire universe can't be selfish? Aren't these characters supposed to mirror real people, insofar as their personalities, at least? Everyone has flaws. People are stupid. OMGZ, she made a decision you don't agree with. Come on now...
All I can think of for right now.