I would guess the PAC has a longer range, bigger engagement envelope. But it is a big beast too. Wonder if an F-15 could carry more than one or two of them? (and get up to significant altitude and speed). What's the load-out capability of an F-15 with AMRAAMs? Personally, I think I'd like more shots... But that's just me.
The Patriot would be fitted where the F-15C fuel pylon is located. The plane’s sensors will feed fire-control data to the missile. They are looking to attaching the Patriot for the F-16,F-22,and F-35.