Interestingly enough nearly all attempts I've seen at "alien" aliens end up portraying them as virtue ethicists with weird virtues.

Heck most portrayals of consequentialists or deontologists (or most people attempting to live those philosophies) end up being virtue ethicists attempting to approximate consequentialism/deontology by suitable choice of virtues (and looking like straw consequentialists/deontologists to someone using a better approximation).