I also agree that the PC version is much better than the 360, in many ways. However, it takes a decent system to run properly. Low-end systems will have some trouble rendering all the stuff needed (which means more than just 5 minutes of lag).
However, being able to turn and chainsaw someone faster than a 360 player can amuses me. Very much. :D
Cross-platform play would be so awesome. Then those pro 360 players would have a fair match... or more. I wasn't able to check for cross-platform, can someone confirm that for me?