Yes, but that's not the reason why I thought of the Su-27 when talking about the F-15 for being the best fighter.
Because I think that exercise outcome was overrated, and that's coming from someone preferring Flankers. The Su-30 has a two man crew, with one concentrating on operating the radar and weapons systems. The Flanker is also more agile, but I don't think that played a major role in these fights. The F-15C has one pilot to deal with it all and is an older design. In my opinion, we don't know enough about the exercise conditions, to draw conclusions the way they are drawn by the media. For example how did the Indians engage them, with the modern R-77? Or with the off-boresight R-73 while the F-15C still carries the older AIM-9 sidewinders?
It may have looked different, if it was a Su-27. Also the F-15C crews operate mostly with AWACS backup, which wasn't included in this exercise as far as I know. Also the USAF might wanted to justify the need for the F/A-22, which was at the time being questioned by politicians and the planned acquisition numbers were subject to major cuts. Then, this was one of the first US-India exercises, I'm not saying they let them win, but I can imagine this effected reports about it.
That said, I am not saying that the Su-27/30 is not a great aircraft and does not exceed the F-15s performance. But I wouldn't jump to the conclusion of it being superior, or in our little poll being the better one. Without the F-15, the Soviets wouldn't have needed a performance fighter like the Su-27. The F-15 is a 30 year old design. The Typhoon embarrased the hell out of the F-15Cs in a mock dogfight, but I don't hear much about that anymore. Nope, the fact that a Russian fighter being exported to almost any potential buyer outperformed a US fighter is far more interesting for everyone, with the exception of maybe Boeing who tries to sell F-15 variants. But even they can use this outcome to market their upgrades and prove the neccessity of advanced radar and self-defence improvements.
Once the Indian Su-30MKI shows up with the TVC and canards, I am sure the F-15C gets beaten in a dogfight, just like the Typhoon did. You are comparing planes of different generations then. The F-15C is going out, the Su-30MKI is entering service. So it wouldn't be fair to compare those anyway.