I'm currently playing a rogue and my friend a retribution paladin.
And yeah.. the balance is a bit odd. We're lvl 25 and i need like 3-5 seconds to kill a mob. And he just button smashes his way through every enemy like before the patch. One-twoshotting them with crits over 2k while the enemies have 1,7k hp.
It feels really bad if you kill one mob while someone else kills 3 in the same time.
Maybe they have forgotten to nerf Ret Pala's dmg in the lower levels like a lot of the other classes like Monk, hunter and warrior.