Mhm, Balmung! Well and Gilgamesh.. albeit to a slightly lesser extent?
Oh and in-case you weren't aware... http://ffxiv-roleplayers.com/

It doesn't cover the whole RP community obviously, but a lot of us use that site as a kind of hub around which to organise things. If nothing else they've got a fairly comprehensive roleplaying Linkshell/Free Company list.