I like body hair on guys. I'm cool with whatever he chooses to do, but I personally prefer the look and feel of some hair on a dude. My boyfriend is pretty hairy, and I'm cool with it. He trims certain areas on occasion and that's fine too, but not really necessary for me.
It is all up to you as to what makes you feel good. Most women don't mind some hair, some don't like any. You will get all kinds of answers. If you are very hairy I think most people would suggest having something done about it. I personally am not very hairy and never used to think about shaving anything other than my face, but lately I've been shaving or trimming more body hair. I just got where I don't like it. I hate seeing guys with long underarm hair. Most guys look fine with leg hair. Mine has gotten to where it doesn't grow on the lower back sections of my calves and never was that thick anyway. I have been shaving it lately and like it that way, just because it is all evened up. For my stomach and chest hair I used a Silkn flash and go to remove most of it. My arms and back are not hairy at all. My arms do have hair but it is so light you can't even tell it. At least trim underarms and pubic area. The rest is optional depending on how you feel about how you look. If you are tan and in reasonably good shape, you will probably get more positive comments than negative if you decide to keep your legs shaven.