I agree with you!! There It sucks to be #2 and we are #1... Oh well!! By the time the Russian stealth fighters enter full production a 6th gen fighter will emerge from the US..
youre envious... I know that the eurofighter is better than the su35 with the aesa radar, but I know that the irbis e radar is damn good and I think that the pakfa can keep up with the f22 and match out the f35. point.
The shape won't be the problem, physics and "stealth" almost dictate all 5th generation fighters look similar. The problem is going to be in materials and Avionics...Russia just does not have the capability to make large quantities of "stealthy" materials..so I'd bet there is a lot of aluminium and titanium (materials Russia has a lot of) in this plane. And I'd be surprised if it had Avionics like a Raptor or the new European designs...their ability to produce electronics is a decade behind.