I don't bother ants unless they are in my kitchen. I have nothing against the little guys but I don't want them in my food. If they're outside, I won't bother them. I will kill cockroaches anywhere I see them. I think they are vile and filthy critters. I like lizards and worms and will actively avoid killing them by moving them somewhere else.
I don't want to kill snails but sometimes I accidentally step on them in the dark walking home in the evening after it has just rained. I despise wasps because there used to be a wasp nest in my mailbox and I would get stung reaching in to get my mail, so one day I just sprayed some Raid in there, taped the openings closed and waited. That took care of them for good.