Kenny. Dang it, Kenny. The majority of my feelings in this season center around this one character. The man I had grown to love in season one, and I had tried to remain loyal to throughout Season 2. Then after everyone else has me convinced, I decide to kill him. And of course afterwards I realize that letting him live is a way better decision.
When Kenny died I was in tears because of his final words. He was finally going to get to see his family again, and I felt that I probably made the right choice. But he was manipulated into reaching his rage, and I felt that was way unfair to learn that afterwards. Still, Telltale handled his death very well.
Then when you let him live, you actually accomplish what you set out to do with Christa, and the parting between Kenny and Clem (if you choose to do so) felt so satisfying. I cried again It felt good to see him alive in the end, even if his fate is left unknown forever. So I prefer this ending much better, but I can't deny that I have feelings for the other option. Only because of Kenny, though.
Although Christa better make a return in the next game. Also points to Telltale for the Lee fanservice. Great game as usual.

Edit:
http://www.reddit.com/r/♥♥♥♥ mfw this exists

Also Luke deserves praise for his dedication to the ALS Ice Bucket Challenge.