“Is”? Already in active service like F-22? Maybe same combat record like F-22. - Not existing! The F-35 maybe a better fighter than F-22 but F-35 is going to be just the best US fighter.
Did you ever asked yourself why Suchoi T-50 is fitted with L-band radar like the SMART-L system used on several warships? http://en.wikipedia.org/wiki/SMART-L
Stealth on US fighter aircraft is extremely overrated but extremely nice pork. Just like BVR. Today F-35 can carry internally just two AMRAAMs. But for the price of one F-35 your enemy can buy about 7 Mig-29. Therefore F-15SE is a far better choice than F-35.
I’ll put in combat that the t-50’s will get stopped and targeted by a lot of F35s and F18s and be done with early on.
If not, I’ll still take the F35.