Which is a rambling way of asking 'when are we going to see what Paris one/Federation one/Starfleet one looks like?
Well, the vessel called
Starfleet One appeared in
The Chimes at Midnight in
Myriad Universes Volume II. It was just a shuttle, and the scene was set in the mid-2280s, so presumably
Starfleet One resembled one of the shuttles from
Star Trek IV or
Star Trek V. However, that novel was set in an alternate timeline.
Federation One appears in a fan series and has never been referred to in the novels.
Paris One has only ever been referred to in one novel,
A Singular Destiny. I'd be interested in seeing what it looks like, too. Personally, however, I like to imagine it as being a Federation government-registered but Starfleet-crewed
Galaxy-class starship, because I've always seen the
Galaxy class as being the most "stately" of the Federation's ships. I see it as being the starship equivalent of the 747. I like to imagine
Paris One as having the words
PARIS ONE written across the hull, with the Federation emblem painted in bright, vivid blue directly below it where we're used to seeing the registry number.
But before we see
Paris One, I'd really rather see the Palais de la Concorde.