Summarise through the DPS specifications and you'll discover a lot of WoW Cataclysm Classic Gold new abilities and an utility resto canister stays the same. Unfortunately they're not as good than they used to be in TBC. Overall Drude is a pretty decent option. Many people who select this class are doing so because they were in it during TBC, and classic as well.
At the moment, beta Rogues cause the most damage when compared to any other class. Particularly the subtlety rogue, who was a shallow dancer and all of his cooldowns explode. Assassination and subtlety both have their place in Marina with assassination the most popular spec, and subtlety being the preferred three spec. Combat is also good, but it's not that excellent in the beginning seasons. It will require gear from some of the later raids that are in the game such as ICC to experience the most brutal killing sprees.
Assassination, I'm of the opinion that it is seriously undervalued, especially for tos. It's almost impossible to repair damage and has better consistent damage than subtlety, in my opinion. Like many of its utility and durability such as Shadowstep the rogue mage priest, is by far still one of the most powerful games' comps. And if you get the skill level you want it's a great way to increase your happiness.
To summarize the idea of robes and wrath, they're even more insane than the guarantee we've been seeing and the classic due to the burst damage that they can cause. And their stun box, they're now able to double cheap shot use shadow dances into Cataclysm Classic Gold kidneys so if you treat it first or second cheap one, you'll be sitting with a kidney full of.