Forza vs Gran TurismoS

This one's pretty short/sweet, let's see where alliance lies amongst the ranks of Oppo. Also I thought I'd trow in this (very incomplete) poll with a handful of games that may or may not be popular 'round here, just to see what happens. What do y'all feel about the current state of racing sims? Even though we've had the release of a couple of huge titles I feel like not much is going on (maybe because I didn't buy any of these said titles).