Heres a video on the topic.
http://www.youtube.com/watch?v=h14-9aeDyn4
Skip to 5:07 if you want the answer.
Hint: it goes along the lines of, neither.
Which platform to go for entirely depends on your budget and usage. Your after gaming performance and on a $600 budget.
Given your low budget, it makes sense to go AMD as they offer better performance at the price-point your after.
If you had a bit more cash, then it would make sense to go Intel, because above $200 they pretty much dominate.
If you were after multi-threaded performance on a budget, again its best to go AMD until you can afford to spend $300+ on a CPU. If you can then its better to go Intel.
Of course, whats true now may not be true later on. Who knows, Steamroller might be the revolution AMD desperately needs and Haswell could fall on its face.
So it depends when you are buying, for what purpose and what budget your at. Its not as easy as saying that one is better than the other.