Although Wrath of the Lich King is fairly balanced, some classes tend to do better in WotLK Arena Battles than others. The following specializations have been especially successful:  Arms Warriors are unmatched at deploying different types of burst melee damage; Holy Paladins excel at surviving any assault and helping their allies last long enough to win. They also have decent offensive capabilities; Affliction Warlocks are rewarding for patient players due to their wealth of area attacks and control measures; Subtlety Rogues are extremely versatile and evasive, but require considerable skill to play right; Though fragile, Frost Mages have very effective damage output and are relatively easy to use.