I know you guys dont like custom maps, and the server i go to has quite a few regulars (sorry if i mispelled it, just woke up) but anyway, alot of the custom maps bring in alot of people, they actually have 2 servers, the other server that i never go to has instant respawn 24/7 goldrush/badwater/ regular maps, and NO ONE goes on it, so im just saying you might want to get some good custom maps in it... some of them are actually pretty good
Also if you want to try something sort of "New" there is a mod called
hunted or Hunter mod, where one team, i think its blue are the body gaurds of the lone engineer armed only with a wrench, and red team are all asassins, works on any CP/ Payload map
http://forums.alliedmods.net/showthread.php?p=646703
also a mod thats like melee sudden death, might be cool to some people...
and theres also an option (for admin i think, and or the server decides) where the teams can be scrambled if they are winning to much, in a way it will aggravate teamstackers, dunno... just my thoughts
and yea, please no fast respawn, you can dumb it down a bit but it blows honestly =[