EAP has the all-important (to me) lane change on highways. And I have been in unfamiliar cities when the Navigation on Autopilot changing of highways has been important to me. So EAP is good, but I really don’t care anything about Summons.
As I have used FSD Beta for several years now, I have found it helpful driving in unfamiliar streets with odd intersections. I also have come to expect it to obey traffic lights, something I like far more than I expected. As of V12, I see the improvement that makes me think I will use it more and more.
MCU2 was a necessity for me, not for any of the entertainment features, but just to make my center screen and navigation usable. No more waiting 10 min for it to reroute me, and no more auto reboot every few hundred miles.
So if I had EAP on an MCU1 car and had to choose between FSD and MCU2, I would pick MCU2. But I think $2k is a reasonable price for each of them and both are good ways to extend the usefulness of an older car.