As another LDS poster has already mentioned, because we ARE an anthropomorpic religion (or rather, perhaps that should be a 'deimorphic' one, given that we believe we were created in God's image), then we expect that intelligent life elsewhere will probably look more like us than like, oh....an amoebae.
As in...legs, arms, digits to manipulate things with, a head to think with and eyes and ears to see and hear with. That would make them, I think, 'human beings,' even if they don't quite make the 'homo sapiens sapiens' classification.
Do I think that they will all be six foot five Viking clones with red hair and blue eyes?
No.
No matter how many alpha male outer space romance novels that get written, I just don't think that's gonna happen.
Darn it.