Fuchs:

You are confusing me a little.

You say it is too early to tell if the J-20 will have a performance advantage over any thing but the F-22, but at the same time you say the J-20 was developed to defeat the F-22 and may have superior performance. Then you say the Typhoon may have superior performance to the J-20. But I thought it was widely accepted that nothing in the west can match the flight performance of the F-22. I am talking about flight performance and should have been more clear that is what I meant.

I stand by my opinion about flight performance giving an advantage. The best example of that would be swept wing vs. straight wing jets in the early 50s. Pilot quality in that case didn't matter much. Straight wings had no chance because of inferior flight performance.

The J-20 will most likely have very superior flight performance to anything but an F-22.