I don't know what is going on with these people and their lives, that they feel the need to come here and say crap like this. What alternate reality do they come from?
Right now - China surpasses Russia in every single metric of measure of aerospace rating, from airframes to engines, avionics and EW systems, innovation(!!!) and industry depth. Everything.
China has two clean sheet designs flying right now, and Russia has one poor Su30MKI "stealth modified " variant called the Su57 which everyone has classified as the worst of the pretenders to the 5th gen crow. Go figure.