I shave my chest, but only because my hair grows in kinda patchy and uneven (my dad's side has a lot of Native American, yet I got my muppet eyebrows from him too!). If I had some nice, aesthetically pleasing Tom Selleck/Thomas Jane chest hair, then I would keep it.

Two of my roommates proudly tell everyone who will listen that they shave absolutely everything, including the pubes, but they are both vain as hell, so dunno what to say about that.