Can't figure out which Cent OS to download

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http://unix.stackexchange.com – I'm not sure if this belongs here, but I really need help on which Cent OS version to download. There's some linux distros that I want to try, but none of the websites are as user friendly as Ubuntu =( Which one should I download from this list? http://mirror.rackspace.com/CentOS/6.3/isos/i386/ (HowTos)