For me it was a toss up between AMD and Intel.
The only reason why Intel won that toss was because I couldn't find the motherboard I wanted when I was specing out my system.
Here's what I ended up getting (11 months ago):
- Asus P5K3 Deluxe motherboard: $238.99
- Intel Q6600 Quad Core 2.4GHz: $259.97
- OCZ Gold DDR3-1333 (9-9-9-26) 2 x 1GB: $255.99
- Asus EN8600GT 512MB DDR3 nVidia video card: $160.99
- 3 x Seagate Barracuda 7200.11 500GB hard drives: $383.97
- Ultra Chilltec CPU cooler: $158.99
- Ultra 500W X-Finity Power Supply: $73.99
- Antec Nine Hundred mid tower case: $101.99
Which cost me over $1900 after tax.
I was going for I/O bandwidth more than CPU speed.