I don't have an X-box, so I can't comment much, but it seems like this is the game they should have made last year. I'm guessing an extra year with the hardware will tend to make things better. Also, the screenshots look nice.
I'm Mr. Mister. Watch your back, felons! When I get pissed, you get mist!
Obviously, they don't have final hardware yet, but AnandTech (anandtech.com) got some hands on time with the 360, and it's the most I've seen of the system yet. It looks like a very well designed piece of hardware.