Going back to linux after a few years, 10.04 LTS or 12.04 LTS? I intend on installing i3wm

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http://askubuntu.com – The goal of this build is to be a quick and efficient build for programming. I like the look and functionality of i3wm. That being said, which version of Ubuntu should I install? 10.04 LTS or 12.04 LTS? is 10.04 lacking anythiun (HowTos)