
Only a few F-15c's will have the aesa upgrade radar. Most F-15 C's are upgrading to the apg63v1 which is still quite an impressive radar, it just isn't Aesa. Aesa improves reliability and allows the pilot to use the radar for multiple functions at once. If a radar is Aesa, doesn't automatically give it higher ranges. Currently no US F-16's have the Aesa radar, and I don't think any are planned to. It is being offered on the F-16 blk60. I believe UAE was the 1st country to order the blk60 with its Aesa.
The F-15's radar will always have longer range b/c of its greater size. In other words its radar has many more rcvr/xmtr elements than an F-16's. The F-16's much lower RCS would somewhat counter act this. But in the air supiority role, sorry folks it's all F15. Its speed, altitude, range, massive missile loadout, and powerful radar are still amongst the best in the world.