In my experience if you don't OC you will find similar performance at similar price points.

The BEST products that AMD has to offer right now (Phenom 9850 2.6ghz) performs slightly better than the Q6600 (2.4ghz) for a touch more... I personally have stuck with AMD because I have 3 pretty solid systems here, two used for gaming and a 3rd that I run my hand-me-down parts into for my DVR... if I switch platforms, I break the chain of handing down parts until I upgrade 3 times.

All said and done I expect that AMD will be pulling something significant out soon or we will be seeing a bad bit of news from their financials.