Let me start this by stating that I am by no means an expert on airplane but only someone who finds them interest. So I do a fair amount of reading on the subject.
That said in what ways is the SU 35 more advanced. From everything that I have read about the only area the SU has any advantage is in its turning ability. Which most of that advantage goes away when the SU has a full combat load due to the drag created by having to hang all its missiles out in the air. A problem the F22 doesn't have. The F22 is faster can accelerate better has at least as good if not better radar and of course has stealth. Just don't see what makes the SU more advanced in any real way then a F22.
As to the T50 they haven't even put the engines they actually intend to use in one of them yet let alone tested them. Even with that every thing I have read states that when completed at best it will be a close match to a F22. And due to its huge cost it is doubtful Russia will be able to buy more then a very limited number unless they can get some foreign buyers to help off set the cost.
And we already have operational F35s deployed to various parts of the world that has many advancements that neither the F22 or most likely the SU will have.
Sorry but I am just not seeing what Russian fighters are more advanced in any real meaningful way over US fighters.
The speed difference is a joke, 1500 mph vs 1491 mph, literally 9 mph, not rally a winner there for either side. On the radar the su35 uses multiple systems, as well as target systems on the the tail of the plain allowing it to hold target during maneuvers, and also has a helmet mounted hud targeting system, which allows them to target other jets during maneuvers, the f-35 has it but the f-22 does not, and russia has had that for quite a while. Russia uses 3d thrust vectoring which is more maneuverable even fully loaded, and also has a failsafe for thrust vectoring, which is something they felt the f-22 lacked and saw it as a major flaw.
The su-35 has far better close and mid range radar as well as the ability to detect stealth aircraft(albeit very limited angle meaning they need to know the direction or be lucky) while the f-22 has better long range radar. The su-35 is technichally a stealth fighter nbut is not listed as one, as it barely meets that threshold, while the f-22 is full stealth. This however in an air superiority battle means little as the f-22 would have to rely entirely on stealth as many to most simulated models show the f-22 losing in a dogfight to a su-35, meaning it has to end the fight before it begins to hold an advantage ie sneak attacks.
The f-22 I could not find any concrete evidence on cost, because my research shows 250-350 million per jet, pretty much one of if not the most expensive jet in the world. The su-35 is estimated at around 40-85 million per jet. The su-35 also has frequency jamming which jacks up but does not stop americas frequency hop system, making targeting of russian aircraft unstable and unreliable.
On the f-35 that would lose in a heartbeat in a dogfight to the su-35 or even the su-27 maybe even a mig 15, the f-35 is not an air superiority fighter, it is a multi role fighter, while the f-22 is an air superiority fighter, hence the comparison to the f22 is more fair vs the su35 and the t-50/su57 since russia does not have an equivilent to the f-35 and looks like they will stay with independant specialized systems for now. Also I do not consider the f-35 as operational even though the armed forces ordered them, as they have not seen combat yet and until very recently have been hanger queens, and it looks like israel will be the first to use them in normal missions, I really think with all the setbacks of the f-35 developement the military is slow rolling them into use to find any bugs before they see combat.
