Western airframes, avionics, and pilot training were all generally superior to their Soviet counterparts throughout the entirety of the Cold War. That is a given.
However, here is yet more evidence that technical superiority does not necessarily translate to victory.
During a joint exercise between the USAF and the Indian Air Force, the latter, flying MiG-21s and SU-27 variants, roundly defeated a force of F-15C Eagles in air-to-air combat.
http://www.thedrive.com/the-war-zone...ations-tighten
Yes, the parameters of the exercise did favor the IAF, but still, if technical superiority always translates to victory, the IAF would not have won.
In a v1.0 T2K situation, the Red Air Force would have had several months of aerial combat experience versus the Chinese Air Force before the war with NATO kicks off.