Every couple of weeks or so, we highlight a game in the StarCraft II Arcade. It’s a recommendation to anyone who plays StarCraft II, and often, we’re asked why we choose the games we do. That’s a good question that deserves a full answer. Here are the main factors taken into consideration.

Full article here:
http://us.battle.net/sc2/en/blog/7770424/Why_We_Featured_That_Arcade_Game-11_2_2012