God of War 3 is impressive.
The reason I'm messing with God of War I and II is because I have a co-worker who simply cannot stop gushing about GoW3. I don't think I should just jump right to 3 w/o at least messing with 1 and 2
Oh yeah, it's definitely worth playing those two first. Heck, you don't even understand wtf the deal is with Kratos until halfway through GoW I anyway. If you have a PSP get GoW: Chains of Olympus, too.
God of War 3 though is just an amazing technical achievement, especially considering it's happening on 7800GT level graphics. People who complain about 'crippled' console graphics haven't played this on a 55" TV. The set pieces are phenomenal...when you realize you are fighting on the back of a Titan that is scaling a mountain...just very impressive.