gtr because the tranny is more superior,more aerodynamic,im not sure which is the better awd. i've seen some on board video with bmi the evo x is not that open throttle while cornering but still very fast in the bend.
I won't say that GT-R would win 100% of the time. It really depends on the track. I think on a track like ebisu, GT-R and the Evo X would be comparable, since the GT-R's power advantage over the Evo X would be rendered useless in such a tight and small track. On a larger track, the GT-R will obviously win since it is so much more powerful than the Evo X. I don't know how true this is in real life, but from the experience of playing GT5, the AWD of both system is very different. Evo X AWD would independently apply brakes to any of the 4 wheels in order to correct your speed so you can attack a corner at maximum speed, The GT-R, on the other hand, would let you drive it to the limit 24/7, however, I find myself drifting a lot with the GT-R. If you are take a corner too fast, you drift, unlike how one of the host of Best Motoring said that it understeers. One thing I like about the Evo X is that you can brake and turn into the apex at the same time without drifting LOL! But overall, GT-R is faster on all the tracks on GT5!