I think chill is resurfacing again... I am hearing it a lot more. A lot of people use dope though... as in, "Your new ride is pretty dope dude."
Although mainly the stoners use that word. Also, prime is another word used, which I personally like. Prime in this sense is like perfect. The steak can be perfect, but it can also be prime. If a track is perfect, its also prime. Ex: That open lot would be prime for a track. Ex: That take off for the jump is as prime as they come.