Without knowing any particulars, I think the F-22 is way ahead of anything else, though.
I would think the Russians have most of our classified avionics and countermeasures data.. I would guess that the F22 is better though, avionics/countermeasures(ECM)-wise, but the SU35 is more agile. But does agility really matter when the other guy can shoot you down from miles away? Hmmm. The SU35 definitely makes for a better airshow whereas the F22 is comparatively boring. But in war, F22 probably has the edge.
Please note that the Raptor was conceptualized to duel with future Soviet super fighters, that with the collapse of the USSR are only starting to come out now with the SU35 being the lower end and the PakFa the upper end. The Raptor was meant to match and defeat them.
In a nutshell the Raptor is better than anything currently flying operationally. That includes the SU35, as well as the J20, J31, and PakFa stealth fighters. The only problem with the Raptor is there are not enough of them.