Louisoix/Moogle – bastions of the French.
Shiva – German hotspot.
Odin – Valhalla... i.e. Nordic hangout(?)
Omega – bespoke EU "high" RP hub (heck there was a group with tags at WDP last night, must be serious stuff!)
Zodiark – certain variety of ERP... maybe not the case anymore, my intel is outdated. Like, before the DC sundering outdated.