CTR has a friction lock that makes it a little more solid once locked in place. What are you using this rifle for? If it is just going to be a plinking rifle, I would say just get the MOE. If you are going to do anything more, get the CTR. I have a CTR on one of mine and it is a great stock. I have worked with the MOE's as well and they are good, but to me they don't offer much over a factory collapsible stock.
For the grips, I prefer the MOE+ as the rubber makes it much easier to hold onto the rifle when it is cold. If you want a little more adjustability, get the MIAD