I'm not sure if the console versions are nerfed or it's just because we're playing on Normal but by end Act 2 and on we've just been cruising. We've beaten Belial and all Act 3 bosses in seconds. Not losing any health, really and just stocking up on potions by not needing to use them. As a Witch Doctor, I have three dogs and a giant garagantuan following me around just wrecking. My buddy is a Barbarian. We've had no challenge. I'm hoping going up to nightmare will solve it.
Game is still so fun. Loot hunting is amazing.