If you're serious about wanting to install CM (or another distribution) on your device I'd first read through the relevant development thread on the forum or mailing list used for the distribution. This is where you'll find out which version to install, which problems you're likely to encounter and - if you're lucky - even ways to solve those problems. You'll find loads and loads of opinionated posts by people who often don't have a clue what they're talking about but that should come as no surprise given the subject matter and the medium. There'll probably be some good posts by the original developer(s) and a core of knowledgeable people, just focus on those and ignore the noise.

For the Motorola X you could have a look at the relevant XDA forum (http://forum.xda-developers.com/moto-x), there might be something worth your while there. Not having one of those devices I can't tell.