..Do people ask this question for the fun?...
Well here we go again!
While both processors are arguabley strong in their own rights. You must first consider use.
If your going to use this as an office machine, or play games, but not a whole lot more I'd say go with AMD as that is what they are good for. And there is always the cost to think about, even when it's not an issue (nobody really wants to waste money). They are stable, and reliable. Just don't expect multi-application performance.
If your looking to oc (ever) P4c's are sweet, they are forgivable, stable and come equiped with an overheat protection. They are flexable and most of all....They multi-task like a CHAMP. I can run 3 ACAD applications, surf the net, listen to music and Download-Simultaneously. I can switch between them without delay or pause, ever. You can do the same with games (alt-tab to Windows to see how your dl's are going) and the transition is silk, unless Windows complains.
I have owned performance processors on both proc's and was happy with both. My needs changed, therefore my processor did as well.
Consider your needs, consider expandability and bang for the buck (O/C) then go buy a Pentium...lol
See Sig for my rig~