I prefer it when humans are treated as the animals or as their equals (more so the latter), like in Predator or Mars Attack.
I used to be obsessed with Predators and the possibility of this seemingly allmighty alien species treating you as their equal (by marking you with alien acid) dominated my mind for the longest time. Even now I can't help but think that it's a fucking cool concept, and it's a real shame that all the video games about it have been total garbage for 20 years except for 1 in 2010.