I'm biased, but since I just saw the flick today and finally can come back to the forum, I am going with Chris Pike at the end.
I was fearful he would be "Menageried" so to speak. He has a heckuva role in this movie and still has his facualties about him.
"I'll break out of this zoo somehow and get to you. Is your blood red like ours? I'm gonna find out. "-Captain Christopher Pike