Its a server for Minecraft multiplayer PVP
It all depends what your after Category's, servers like: PvP Survival Creative Or Servers that supports mods, which are longer to list, have a look on Planet Minecraft which is a site on servers. Then go on the server that suits you best.
NO!
A dedicated Minecraft server is a server where you can play original Minecraft. Usually without plugins or mods.
rolyd.com definately great server friendly community their are pvp arenas but you dont have to go there
The Server has to install the mods Not You.
It is a server that dosn't use mods or plugins
You can if you use mods or server texturepacks
Impossible
This is a great pvp server : pvp.hcserver.com griefing is allowed this is a great survival/ economy server mc.hcserver.com pstone, iconomy, lockette, and other great mods
Please Revise Question For Minecraft: Mods are the community managers
Depends on your server host.