only problems i have with Cata are the healthpools.

As a boxer at level 40-60 you could get lucky and take down a level 70-80 toon. Now its like trying to kill a raid boss.

Sad thing is its only going to get worse.

Vanilla hitpoints = max of about 2200-3800 hps
Burning crusades = max of about 5000-11000 hps in epics and chants
Wrath = max of about 18,000-32,000 hps with pvp gear
Cata = max of about 110,000-160,000.

Thats a huge jump.... i just dont get it.. .its only 5 levels.