Forza 4 didn't really win the head to head because there was no head to head. Digitalfoundry seems to think they are both as good as it gets and Polyphony seems to be the one that tries to introduce something new in racing sims. I am stating only this because for some (weird) reason you guys are picking on gt5 throughout the thread.
There's also a forza 3 vs forza 4 comparison, its a good article overall.







