I think this question was actually already answered by the US Air Force.
Originally Posted by flanker
Back in 2002, the results of a USAF air combat simulation were leaked to the press:
David A. Fulghum and Douglas Barrie, "Su-30MK Beats F-15C 'Every Time'", Aviation Week & Space Technology, May 24, 2002.
According to this article:
The Russian-built Sukhoi Su-30MK, the high-performance fighter being exported to India and China, consistently beat the F-15C in classified simulations, say U.S. Air Force and aerospace industry officials.
In certain circumstances, the Su-30 can use its maneuverability, enhanced by thrust-vectoring nozzles, and speed to fool the F-15's radar, fire two missiles and escape before the U.S. fighter can adequately respond. This is according to Air Force officials who have seen the results of extensive studies of multi-aircraft engagements conducted in a complex of 360-deg. simulation domes at Boeing's St. Louis facilities.
What this should tell you is the following:
- The F-15 still has an advantage over the Su-27 (which was why the USAF wasn't concerned until the Su-30 arrived on the scene)
- The Su-30 out-performs the F-15
- The F-15 has a whopping big radar signature (which is why the Su-30 can fire-off two shots before the Eagle can respond)
Please note that this F-15 versus Su-30MK study was performed by Boeing (which had absolutely no interest in convincing the USAF that it needed more Lockheed F-22s, which is essentially the conclusion that the USAF came to).