F22 Long Gone
I'm sorry, "there???s still debate over whether such accelerated developments present any sort of credible threat to the F-22, America???s supreme stealth fighter"...? There is no debate of the J-20's threat to the F-22 because the F22 program was cancelled in 2010 by Mr. Obama and Mr. Gates. Only 195 F-22's were produced during it's life cycle. I'd hardly call that "America's supreme stealth fighter" with those kind of numbers. The only "threat" to the F-22 is that the J-20 looks like a ripped off the design.
Without getting too much into the politics, Gates, Obama, and others decided to cancel F-22 production in favor of the F-35 and F/A-18 E/F Super Hornet programs due to their multirole capabilities and because the F35 is also a stealth fighter. Currently, there are about 500 F/A -18 Super Hornets (as of April 2011), and 63 F-35's since it's introduction in 2011.
So let's compare the J-20 to the F-35, instead, since that's a more realistic scenario.