Spiders are my friends. Centipedes get removed but I admit they have some awesome artistic aesthetics. I rescued one the other day in an office building marble floor he really had found himself a bit out of place. I like stinkbugs a lot, they have fascinating behavior patterns and live long enough to feel like a temporary roommate/pet. Moths are great to taunt my cat.
Flies I murder with ruthless efficiency. Pacifism is hard.