I was in a group the other night on my warr, lvl 45 at phantoms in the spirit room (the one that actually respawns, not the crappy top level one, lol) and we tore through everything with a healer and two casters.  Warr didn't lose aggro once and I never once ran low on mana.  I don't know what all the complaints are about.  He was built to MT too.

Last night I was helping a friend with her epic, farming mobs in Guk on my SK.  I actually logged him in to find I'd reset all his stats and in 10 mins reassigned all his TPs and cms... not my best work, lol.  But he tanked for a couple hours and never lost aggro, and was actually asked by one of the dds who had read some of these same threads if I'd ever gone out of mana, lol.  I never got down below 3 bubbles holding aggro and I never lost aggro.  So tanks haven't been suped up.  My opinion, with a main as a dd, and having casters, healers, tanks... the game is just getting too easy.  Instead of balancing the classes each time someone complains by maybe weakening them, they just up the damage dds do, up the damage people can take and do nothing to compensate for it with the mobs.  This game used to be a challenge.  you had to put together a good group and everyone had to know their place in the group and adapt to the people they grouped with.  I remember going for my MC on my rge I grouped every night with one of the best warrs I ever met (Voidlife), a bard, and whatever healer we could pick up.  He didn't have the most HP at the time, but he knew how to tank.  Where normally in a group he'd have 2 or 3 taunts on his belt, when he grouped with me he filled an entire belt with them, would taunt 5 times, then throw in a couple more as they came up and bring the mob back, allowing me to go off on every mob.  Was some of the fastest xp I've ever seen.  Anyways, I'm rambling, but the point being, if you can tank, tank.  If not, don't, lol.