There really are not GC armor "sets", there are two uniforms for each (Soldier's and Officer's), neither of which look like anything you'd wear in combat (but they are quintessential FF XIV looks regardless), plus a smattering assortment of often mismatched other gear for use while leveling. Some of these other "sets" will match, but are just recolors of existing models that you can get elsewhere.
The only exception to that are in the weapons. The GCs do all have a nice collection of weapons many of which you will not find elsewhere, and are not simple re-skins of other companies weapons. Â
You can look at all available items by visiting the appropriate vendors, and its also not that hard to change GCs (you can change every two weeks, the first is free, all others cost 50K gil), but your rank is separate in each GC.
Lastly, I will just mention that Maelstrom has the best and most amazing boots :-]
The only exception to that are in the weapons. The GCs do all have a nice collection of weapons many of which you will not find elsewhere, and are not simple re-skins of other companies weapons. Â
You can look at all available items by visiting the appropriate vendors, and its also not that hard to change GCs (you can change every two weeks, the first is free, all others cost 50K gil), but your rank is separate in each GC.
Lastly, I will just mention that Maelstrom has the best and most amazing boots :-]