FourSeason status:
Recruiting afaik
Tygryski status:
Yesterday i spoke with them, they are on vacations (most of them). They didn't quit
Malkavian status:
Their Leader (Glerokh) is on vacations. Still recruiting, they won't stop war (check the forum)
Illegals status:
Disolving, their leader quit server I think.
My point is, if you want a server that's goning to be around for more than a month come and join. If you only care about max pop, join the latest trend and have fun :)