What Server should i make

Hi Guys

I like to create my own Server, but i want to know what server i should make? So i ask you.

What kind of server you want. (Rpg/PvP/Survival/.....)
Which style (Medival/Modern/Futuristic)
and what you want to see (Arena/Spleef/MobArena/...)

Post your oppinion in the comments
Thank you
And sorry for my English