I still think it would be hell of show to duel the two warplanes in a friendly dog-fight: Russian bird has more advanced form of thrust-vectoring and sightly more modern electronics, as well as carries twice as much fuel to stay airborne and outmanuveur the opponent. But Raptor has those ingenius fins at the end of the nozzles that provide the pilot with few degrees larger tilt, meaning more sharp and precise turns. In the hands of a skillfull pilot, that can go a long way. - Man, I'd pay to see that one match!