NOD sucks horse dicks. No baserape, no jihad jeeping, claywhoring is possible and that retarded team randomizing that doesn't allow you to play a few succeeding rounds on the same team with friends without interruption. I used to play there quite a lot as it's been one of two good european multimap servers (the other being the Weedkings server, which is a good place if you don't mind not getting in the choppers, but - unlike TCS - seems to have been eternally emptied out by teamstacking and the server owners chopper claiming), but can't stand it anymore. That's just too much "don't"s to have fun.
TCS is definitely the server of choice, even if I ping ~140 and above.
KOF would be a cool server, but... how to put it, they tend to be a bit paranoid about hacking and their clan mastermind or whatever they call him doesn't really like my group.
Others are, of course, A2G, HBD, MaxCarnage...
I share Frontside's search for something different though but doubt that there'll be an alternative for any of these again.
Proud member of a dead community.