Which college should I choose: Pomona or Claremont Mckenna?

I really want to go to a Claremont college, but I can't decide between Pomona or Claremont Mckenna. I'll probably apply to both just in case, but I'm just not sure! I want to major in Psychology, but I don't know which school would be better for that. I like the politics focus of CMC, the small school feel, and the emphasis on career, but I've heard it's huge on partying and I'm not sure I like that. Does Pomona have a better psych program, and is there less excessive partying? Or should I go with CMC?