Fantastic aircraft. The latest figure I heard was that a flight on 8 raptors managed to take out 32 F-15s without loss. But then on C5, I read one got caught by an F-18 low and slow. I say the pilot makes the plane, but as far as just the machine goes, I don't think there was ever a finer plane made. Of course that comes at a price few can afford.
Fortunately, it and the rest of the top of the line equipment being developed and deployed now most likely won't ever see a true test of their abilities. Unless other nations sell their best planes(and other weapons) cheaply and liberally, most won't have much of a chance to fight each other. As economies intertwine, aside from some catastrophic change, going to war with any of the old threats like china and russia dwindles as time goes on. North Korea is probably the biggest threat, any other country war is forseeable with, we'll be stuck in guerilla warfare against militias, rebel groups etc. Which a Raptor or Abrams isn't quite as useful.
Of course, that's what simulations are for. We can make up and conflict we like to pit them against each other.