What's better for PW server?

Hi...

Here i just want to know what yall think about the server of PW...
Just for knowledge...i want to gather all the member's opinion about this server...

Yall can tell me which server u prefer? Which platform better with the server file? From which release? And what version is the best?

Ok...that's all i need to know...may b useful for some1...
Thanks in advance...