My chars tend to wind up parked as Vig in most cases, Rogue if not. Everyone goes everywhere and some of these started off in Praetoria. (I should have that flagged somewhere...)
Current tracked server roster is:
Everlasting
41
Excelsior
33
Indomitable
11
Reunion
2
Torchbearer
2
A couple other experiments going on that aren't added to the spreadsheets yet.
Now, on to the concept of factions; For the chars I have Roleplaying somewhere in their concept, they're more malleable anyway than an alignment system. (What can I say, I didn't play D&D, I did Hero, so that was more a disad/limitation discussion)