Arathi Basin is definitely my most favorite. My least favorites are Warsong Gulch and Twin Peaks since I just can't stand capture the flag. Isle of conquest is pretty low too. So ranking them I would say from favorite to least favorite----Arathi Basin, Battle of Gilneas, Alteric Valley, Strand of the Ancients, Eye of the Storm, Isle of Conquest, Warsong Gulch and then Twin Peaks. If you count Wintergrasp and Tol Borad they would be somewhere in the middle.