[otrs] what is the best linux distro in my situation?

Hello, I'm trying to install the latest version of otrs and I have a choice of whichever distro I like. I am familiar with CentOS 5 and Debian Etch. However, looking at the OTRS website I see I can choose Suse as well, so I am trying to decide which one will be better in terms of support or maintenance? I have been told that for CentOS 5 I need to install the Fedora version, is this correct? Any help appreciated, Khusro