What to choose for a dedicated server?

Question

Server equipment

The usual application on the framework, with loads.
Panel selection:
Without control panel and without administration
ISPManager Lite without server administration
ISPManager Lite without server administration [ -82.76 RUB
ISPManager PRO without server administration
Managed dedicated with administration
OS selection:
CentOS 6
CentOS 7
Fedora 16
Fedora 17
Ubuntu 11.10
Ubuntu 12.04 LTS
Debian 6
Debian 7
FreeBSD 9.x
Windows Web Server 2008 R2 (CPU, multi-user)
Windows Server Standard 2008 R2 (CPU, multi-user)
Windows Server Entrprise 2008 R2 (CPU, multi-user)

Answer 1

Whatever fits best and you know how to set it up, then take it.