I think, for me, I don't like pubic hair (I don't shave, but I trim a lot), back hair, or lots of chest hair. Of course, I'm pre-everything, so I haven't really experienced having chest/back hair firsthand, but I don't think I'd like it. I'd probably shave it. I'm okay with some leg and arm hair (I don't want it super thick, but I'd like to have some) and I'm kinda indifferent towards armpit hair.
I guess in this case, it's all a matter of which body type you like, and personal preference. Think about swimmers; they shave everything so they can move fast in the water.