anthonybs saidI have hairs on my butt, hips and chest... I've always been jealous of those smooth, hot guys who don't have any. Is having hairs considered hot or not? Is there a way that they can be removed permanently? 
Laser removal works well. The question is: are you trying to please just yourself, or the guys you wanna date? What happens when you meet a hot guy, and he likes hair?
I've never really cared much about how I looked regarding hair, other than it be neat and not scruffy. With guys who like hairless I've shaved, and let them shave my back in the shower, a nice bonding activity. For the hair lovers I let it grow back. I kept my options open.
Same with facial hair. You like a beard? I'll grow one. You don't like a beard? I'll go clean shaven. There are arguments for each, and my personal preference isn't very strong one way or the other. It's more important that it please HIM, who's gotta look at it, kiss it, touch it.
As for what I do like in another man, it's very nice to snuggle my face into a little fur on a well-defined, hard chest of a guy in his 40s or 50s. But for a 20-something with a swimmer's build (just eye candy for me at my age) the smooth hairless look can be attractive, too.
So there are other considerations besides just the hair itself. I'd not recommend you permanently limit your options just yet at 18, and instead let the "market" help you decide on a temporary case-by-case basis.