Read up about FDX’s scope. When Fred is gone it could potentially be less of a good deal than it has been there.
I think the timing is right at UPS. Go to wherever you get a class first. Hard to go wrong with either. IPA is far superior than ALPA, but FDX is a much better employer than UPS. 777 is cool but the 747 is so iconic. Quicker upgrade at FDX but they have a B scale for it.