First of all, let me know your Free Company. Then, let me know - in order - which of the three housing areas you prefer and why/why not.
For me...
1. Gridania - It's super pretty. It looks like a lot more time was spent on it by the devs than the other areas.
2. Ul'dah - It's right next to our FC's GC and I spend most of my time in Ul'dah markets, so it's convenient for that, too. It's also cheaper to get to the other areas due to Ul'dah's central nature. I like The Goblet on a sunny day, but feel it's overall aesthetically rather drab.
3. Limsa - Those canals do my nut in and the beach isn't as amazing as I had hoped. Just a long white slab of sand, really. Like Ul'dah, I feel that a lot of the area is a bit dull compared to what I was expecting.
For me, FC Housing should probably be in Ul'dah because of the convenience factor, but I can't deny that Gridania is making it super tempting to swing it out that way. Of course, I'd like personal housing to be in a different area than FC Housing so I'm thinking I'll end up with personal housing in the personal preference location and the FC Housing in the more convenient place. I'm still open to mass opinion, though, so Fat Chocobos, be sure to let me know what you think!