I am a bit disappointed actually, that Mint is basing every release off of Ubuntu 14.04 LTS which is incredibly out-of-date, rather than using newer releases as the base for non-LTS releases.
But hey, *buntu users should be used to out-of-date anyway.

Get Arch/Gentoo if you want up-to-date non-security-related software. (And it will be
really clean.)
So I guess Mint is the best choice for *buntu users.