the coolest sport is definitely billiards.
a few reasons:
It requires skill.
you don't have to be terribly inshape to play.
It takes years to master any aspect of it (i've been playing for like 4 years and i still can't get good english on the cue).
It requires intelligence to play.
It requires advanced planning to win.
Matches can get rather exciting when they're close at the end.
There are so many games you can play using the same set of balls and table.