Depends. A lot of varibles go into it. Driver, Car mods, weather conditions, altitude, etc. If I had to bet, I'd put my money on the LS/VTEC, if it's tuned right.
kind of a close one id probably go for the ls/vtec i've seen a few run at the races with juice and they were hella quick but then again i've seen a gsr kill them too it all depends on the car and driver