Depends on what you compare them by. I'd subcategorize it by dividing them into three lists. The fighters included in the lists are fighters on their way of being fielded and confirmed for usage.
Top 10 Air-Air fighter jets:
[In which A2A weaponry, Radar, RCS, maneuverability, EW-systems, supercruise, IRST and interoperability plays the biggest parts]
1. F/A-22A
2. PAK-FA T-50
3. Gripen 39E / Rafale C F3 [TIE]
4. Eurofighter T3
5. F-35A
6. Su-35BM
7. F/A-18E / Su-30MKI [TIE]
8. F-15E
9. MiG-35
10. J-10A / F-16 Block 60 [TIE]
Top 10 Strike fighter jets:
[In which A2G weaponry, Radar, RCS, EW-systems, targeting systems, payload, deep penetrative strike capability, speed and range plays the biggest parts]
1. F/A-22A
2. PAK-FA T-50
3. F-35A
4. Su-34
5. F/A-18F / F-15E [TIE]
6. Su-30MKI
7. Rafale C F3
8. Gripen E / Eurofighter T3 [TIE]
9. MiG-35
10. J-10A / F-16 Block 60 [TIE]
Top 10 multi-role fighter jets:
[In which A2A/A2G/-weaponry, Radar, RCS, EW-systems, targeting systems, payload, speed, range, turn-around-time, flexibility and swing-role functionality plays the biggest parts]
1. Gripen E / Rafale C F3 [TIE]
2. F-35A
3. F/A-18E / Eurofighter T3 [TIE]
4. MiG-35
5. PAK-FA
6. Su-30MKI / F-15E [TIE]
7. F-16 Block 60
8. F/A-22A
9. J-11 / Su-27/33 [TIE]
10. F/A-18D
This list will with no doubt stir some emotions here, and I believe the absence of the Chinese fighter projects J-31/F-22/FC-1/J-10B/J-11B/J-15 will be the biggest question. The reason is that in my regard, there's isn't enough hard data to go on these for the time being. There's a lot of proposed data and rumors, but I just can't see how one could compare them to existing projects or existing models just yet. As far as I'm concerned, China still hasn't officially recognized neither the J-20 nor the J-31? And until the Chinese models have been in some sort of international evaluation or been tested against other similar jets in actual training exercises, I don't think it's quite fair to involve them at this moment.