Originally Posted by
Niberion
Well, I'm afraid resto lock is no longer the top combination.
While warlocks still have a good synergy with healers, the synergy is no longer that strong as it was in tbc and cata.
Not only that, but affliction warlocks were very strong in arena due the good pressure they had, but now with the changes to affliction and with how malefic graps is required to do a lot of damage with dots, affliction is nothing more than a weaker shadowpriest with a spamable fear and a better dispelprotection.
Now to stay on topic, rogues currently aren't doing to amazing compared to other melee, but it wouldn't surprise me if they become the top melee in 5.3-5.4 due how they scale.
As for mage, mages currently have 2 very good specs for arena and will high likely be a topclass for the rest of the expansion.
Druids on the other hand are currently amazing healers, however, balance and feral are really lacking right now but that might change.