If only PLA aircraft that are combat effective against latest generation frontline aircraft are counted then I am sure China's ranking falls by at least a dozen places or more. Sounds like more 'China threat' mongering to me, that or fanboy chest thumping, both undeserved.
So you think China combat effective air force is at least in numbers ranked 13+ ?
Lets go through some numbers of the PLAAF. Flankers (J-11, Su-27, Su-30) ~412, JH-7/A ~194, J-10 ~210
So just 4th generation ~816, take out the JH-7/A if you want and we still have ~622. Most of the original J-11 received upgrades. Now we add onto the ~216 J-8, nearly all upgraded to allow them to fire BVRAAM, we have ~216 capable of delivering BVRAAM and then getting out of there.
These numbers outnumber Russia's 4th generation, add to that we know that Russia has after collapse suffered budget cuts, small budget allocation, and major corruption. Most of the Flankers and Migs are still stuck with technology they had when Soviet Union was in existence.
German airforce Tornado ~177, Eurofighter ~49
RAF Tornado ~136, Eurofighter ~71
JASDF F-2 ~77, F-15 ~202
So you are still so sure, that it is at least ranked 12+ or more????
At the moment PLAAF combat aircraft consist nearly 50% of 4th generation.