Am I the only one who noticed that SSC/TK were listed, but Hyjal, which was by far the worst designed raid in the history of WoW was not? If I did my math correctly, Hyjal (tier 6) would be considered later than SSC/TK (tier 5).
Hyjal is the correct answer. ToC, while utter garbage, wasn't the absolute pile of festering cat shit that Hyjal was.