I'd run AOSP, if it had a couple features that CM does.
I really like being able to change the color of the PhaseBeam wallpaper.
I really like being able to set the notification LED to a color and frequency of my choosing.
And the built in Torch app (I know it's available on the PlayStore) is a nice touch as well, and being able to set it as a drag from the bottom quick toggle.
The CM File Manager is great. Great application for those that don't want to pay for a file manager app that has root access capabilities.
And I love the cLock widget.
"Out of the box" LTE support is nice too.
Those things baked in to an AOSP rom and I'd be all over it.