RE: what would win........
I just bash with RC10GT, usually by myself, but I had a occasion to run XXXnt that was set up by competitive driver. My RC10GT would blow the doors off the XXXnt in a straight line, but for handling jumps and cornering and all around driveability on the track, there was no contest. He got my control, I got his....I blew his doors off with his own truck.
That being said and making the general comparison between the RC10gt and a Rustler running against a XXXNT.....I would choose the XXXnt.