Antelope

I would stick with TOS when it comes to aliens. The only aliens we met were not humans or "humanoid" and we couldn't speak to them without a computer translator. If you believe in the Drake equation on the possibility of extraterrestrial life it is likely only the "first" colonizing space culture would ever exist. Everyone else would be their descendant or primitives. I think TOS did that concept well and now that cylons are a product of man it is even better and more realistic. Since we don't know the path of the 13th colonist we can have an unlimited variety of human cultures on the way without the need for fake noses, ears etc. I would think that they would need to speak a foreign language however.