Hello,
if you are a fan of the "zone system" as far as it is feasible in 35 mm, the FE, FE-2 or FM-3a are in my opinion the better choice. You should shoot in manual mode and you see the time the camera would choice in automatic mode by the pointer and the time you have set manually by the green bar. You can easily shift the aperture and see the difference towards over- or under-exposure in the viewfinder. The over/under correction of the F-3 is locked, takes time and you don't see in the viewfinder that you have set a correction.