OK, so the Russians kick ass in the air superiority department, with the Mig and Su series, but do they have a ground attack warplane on par with the US? I mean, its all well and good, but the types of conflicts that are going to be fought in the future will most likely be against countries who have no real airforce to resist, so the name of the game I would think is bombers.
Though, even the F117 "stealth" bomber was proven not to be quite so damn stealthy
But as for my favourite plane, I would say the Mig-29, though I would have to reconsider that on account of those new Mig and Su planes Flaser posted.