Yes, but have you seen the range of the Su-27. For such a aircraft it is great. The Su-27 is a great aircraft and I would get some of those baby's in my airforce if I had my own country. The Su-27 are mostly not talked about it is always just the US aircraft.
I think that the Su-27 is better than what the west can produce right now.
But, we should also look at the skill of the pilot again. If you take the South African Bush War you would see it was the Mirage against the Mig-23, Mig-21, Mig-15, Mig-17, Mig-25 etc. etc. Some of those aircraft are way ahead of the Mirages the South African Airforce had, but who had the best kills ratio?
The pilot makes or brake your airforce.
Henk