Who rocked the most?

Recently, there has been a battle between the two hottest Korean girl bands namely, 2NE1 and the Wonder Girls. I was kind of addicted in listening to these Korean dance beats which pushed me to write something about them. I have seen their music videos (Fire and Nobody) and I liked them both. I asked some friends of mine who among of the two is the best performer. Some preferred 2NE1 because they are more energetic and have good vocals. Some liked Wonder Girls because they are cute and hot (which I agree).

How about you who among them suits your taste?