Of the two the AMD machine is by far better. It's the latest AMD socket AM2. And even the older s939 AMD dual cores always stomped on the PD's anyway.
The Intel system is using an older board that does support a Core2 at all. And the PD's are known to have heat problems.
Choice #2 without a doubt. It's worth the extra $60
8 Pro 64bit
AMD FX 8350
Asus Sabertooth 990FX R2.0
24GB GSkill/Corsair 1866MHz
2x XFX 6870 1GB
SSD - OCZ V4 128GB/Kingston 120GB
HDD - 3TB/2x 750GB/500GB/250GB
Cooler Master HAF 932 Red
CM Hyper 212 EVO w/2x SickleFlow 120mm Red
Logitech X540 5.1 Surround
2X Acer 23" LED - Eyefinity: 3840x1080
Microsoft Sidewinder x4 KB
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
- Albert Einstein