Once again notice I said in terms of sales and popularity, not quality. Killzone 2 MP was awesome and I was a Halo 3 whore for about 6 months but still Halo would tear apart Killzone 2 in sales and popularity.
Forza 3 can be amazing but fact of the matter is that GT5 is also going to be great, online and for the first time realistic damage = progression. Me and my friends are also car fanatics and the reason we got a PS3 was due to knowing GT5 would release but many are still waiting for the game to release. They are casual gamers at best and have no desire to play Forza simply because GT5 is coming and prologue is keeping them happy.
Forza series is AAA quality but it is still nothing compared to GT in terms of popularity, the first GT game did 10x what the first Forza did but the second GT did only 2x what Forza 2 did so who knows, things might be changing.
