RoV/sewers weren't in season 3. But even with incredibly over the top mechanics I still enjoyed TBC on my priest than any other expansion. Obviously my rogue loved TBC too. Statisically I am pretty sure season 3 stands as the most balanced when it comes to classes who achieved gladiator. Crazy thing is you mentioned op mechanics about 6 out of the 9 classes available leaving only mages, paladins, and shaman left. Obviously mages had a place in RMP, and Shaman could succeed with a warrior in 2v2, but I agree Paladins only had season 1 to be good in TBC.