For clear speed for sure not any melee character, no matter how strong, if you need to walk from enemy to enemy in order to release your aoe, it is already gimped.
Best skill are those you can shift+click in certain direction and it auto-aims everything in huge area. They are even better than pounce clones because you dont need to manually find and point monsters, results in better clear speed. Another thing is that you see drops in front of you and you pick them as you progress forward, while with teleporting skills you often need to go back to pick something.