Depends on how much money you have, if you have 200+ then intel is better, but AMD is the best bang for your buck if its below 160 and you dont over clock.
AMD . Unless you'll do both video editing, heavy photo editing or whatever, a core 2 Duo would do you fine. But If it's just for gaming, you'll be more than happy with an AMD.
Well we all should know that we will not know who's winning this race in till AMD gets there DAM @$$3$ in Gear and throw out there Phenom Line of CPU's.
I'm an AMD Fan boy who's pissed at AMD for being so God Damed Slow.