norodnik:
I guess the reason you have seen so much of OAF in pictures is that it was the first in the "Utopia" livery and, as such, features in most of the current publicity shots. (As was the case with OAG when the "Landor" livery appeared).
Also, of course, Fox was the first to fly post-modification and was subject to more media interest at that time. If and when I hear whether Fox will re-enter revenue service I'll post here.
Nineeighteen:
The non-sentimental reasons I prefer AF are:
1. Better fuel consumption than A,B,C,D,E.
2. Marginally nicer handling than OAG, and without G's systems foibles. (OAG has a slightly different standard of DC electrical system and ASP, amongst other things)
None of which is probably of interest to anyone but me, really, but there you go.