FriedRiceNSpice said:About J-XX and TVC:
Even if its supercruise, stealth, and sensory (such as advanced radar) abilities are slightly behind that of the F-22, do you think that TVC could give J-XX the decisive advantage over F-22? How effective do you guys think TVC is in modern air combat, in the age of BVR?
How can you have advantage over some thing that you can not see, your SAMs can follow. F-22 is typical to Radars so J-XX will not have edge over but if you are asking tecnologicaly than the answer is NO. According LH-M F-22 is the most advance manuverable AirCraft & some say only Su-37 comes close to its turns.
I realy dont see the need of TVC. It is highly unlikely that TVC will come into any use during real time battle. If you want airforce which has a mission statement to perform in airshows 1st than defened the country than sure, TVC is good for you. For the same reason USAF rejected the F-16VISTA program saying it will only look good in air shows not battle but did went for it on F-22s.
Anyways back to topic. F-22 is now in service with USAF. It might reach 30+ in quantity by the end of the year. So the best fighter in service is F-22.