It's not as good as you make it sound but yes ret in it's current form is probably the best it's ever been if you have T16 (SoO) 4set bonus.
Our AoE is 100% dependent on RNG for you to do any significant dps, then again because of RNG we have the highest potential aoe damage of anyone.
We do indeed have the strongest mitigation for personal survival in the game, by far the strongest single target utility tools and a raid cd.
Our burst is nothing compared to what it was or even compared to other classes, I've seen enh shamans burst over 5m dps.
Our single target is lowermid table, around where DKs are. DKs do way more passive cleaves however which make them look way stronger.
All that's up for change in WoD, losing our raid cd, our aoe (by the looks of it) are going to be even more clunky. The talents they're trying out though is really promising.