I have been playing starcraft for almost 2 years now. I have played many, many different maps. However, a few of those maps really stand out.

Thee is the massive Killing Fields. Here, up to 8 players can pummel the shit out of each other and still leave a good deal of the map unexplored. Thats how monsterous this 256 x 256 map is

There is the Proving Grounds map. This four player ladder map, with its multiple expansions, is high up on my list of great maps.

The Hunters, not to be mistaken with the mess that is Big Game Hunters, has provided me wiht many hours of fun gameplay as well. This was one of teh first low mineral maps i played, and i still play it to this very day.

These three, in my opion, are tied for the best map ever. Thats just my opion, im sure yours varies. Post them here!