That's true, pilot skill is a major factor. And again you're correct in saying other nations have excellent fighters, as I've pointed out in these posts time and time again. England, for example, with Germany, Spain and Italy, have produced the remarkable supermaneuverable Tyhpoon and Sweden has the magnificent Gripen, although I think the Swedes should have used the EJ200 jet engine from the Typhoon rather than the Hornet's rather weak engine.
And speaking of the F-18C and D Hornet, I feel it would have been a better dogfighter had it been given more powerful engines such as those of the Typhoon,which would have given the C and D models a Mach 2 class rating WITH supercruise and thrust vectoring on top of that. Then I feel the Hornet would be able to dance with Flankers and Fulcrums.
But the weakest part of the US Raptor is the cost, sadly enough, the US Air Force is cutting down on the number of purchase constantly.