Ill vote 4 GT....

I like the real physics applied in the game..

to win, u wont need the fastest car but the best driving skill will prevail...(most probably with a fast car too )..even in straight,u need to take a lot of evaluation on when to brake, even the position of ur car on the circuit will effect ur turn when ur reached the corner...

i play PGR in xbox b4, i dont like the physic much...no challenges(juz my personal opinon)...

GT rock!!!