@Moonbaby: I'm a pretty big Kenny fan but that's while knowing that he can be a coward and an idiot. That's what makes me like him; I really like multi-faceted, imperfect characters.
The one [two?] flaw[s] I see in your argument is the dropping thing. He does it regardless of how good you are in with him, and that's because he has a wound that is barely a week old. He didn't drop Lee willfully. I mean, did you HEAR him wince and moan in pain in both episodes?
I disagree with your first plotpoint for Episode 3. Ben is the cause of everything. The Lilly/Kenny thing had gone on since they first met, and the increased tensions happened because of the bandit attacks. Kenny got anxious about protecting his family in the case of a night attack, and Lilly got anxious because she saw that supplies were going missing - and both can be blamed on Ben.
I'm not going to argue about the other points you made because it doesn't seem as if you're going to see Kenny's side on anything.
Edit: For the record, I don't think there's a character I hate in this game. So don't say that I hate Lilly/Larry/Ben because you'll look silly.