Hi Vaportrail - welcome!
Just to add my $.02 -- I do love the F6C! But I guess like anything else in life, it depends on what you're after.
I really like how the C stands out and is stripped down.
And yet we intend to do some long(ish) rides so I have been looking into options for a fairing. In short, there aren't any. (see Poncho's work on these forums as an example of creative ingenuity to get around this shortage)
Same for other things too - very few options for saddlebags, cruise control, etc.
Again, its a weird dichotomy -- for as much as I love it stripped down (compared to its siblings), I have been seeking to add creature comforts to lengthen my ride radius.
In short (again, just my opinion):
If you are using it as a cruiser and not necessarily longer distance, its fantastic!
If you want longer rides, taking stuff with you to work, etc then I would either expect to spend some time adding stuff or just "upgrade" to the bagger version (or full dress).
So far I have added heated grips, tail bag, highway pegs, corbin seat, and designing a fairing. If all goes well I'll probably design a rear luggage solution too. Why not just go with the B version in the first place then? I can't answer that - I just fell in love with it the first time I sat on it and haven't looked back since. Somehow it just suits me, and I don't mind adding parts to it to make it more custom, more mine.
I doubt any of this drivel has helped much, I should've stopped with "it depends on what you want" and saved your time reading.
Maybe it just comes down to the type of person you are? If you want something more unusual, less mainstream, and you don't mind Googling for hours to figure out how others solved each problem, go with the C! If you want the luggage space, fairing, etc right off, go with the B. If you are over 70, get the A. Ha, just kidding!!! [ducks]
Good luck! Regardless of your choice, its a great engine, smooth ride, nice bike!