I'd say wrestling is better (in general, there are exceptions of course) for MMA takedowns than judo, simply because of the specialization of gi work in judo. If you live in a northern climate where people wear jackets most of the year (10 months every year up where I live) judo is more practical for self defense, because everyone wears jackets (if you fight someone not wearing a jacket just stall a couple of minutes until they freeze, then slide their frozen body to the curb). If you do combat sambo, where people wear a gi, judo is more practical. But MMA is done without jackets, and wrestling takedowns are specialized for that. I think GR is more useful than freestyle for MMA, if you're going to get specific, but that is just my opinion, you hear people arguing both ways on that - though there's really no reason not to learn both GR and freestyle for MMA. However, not being able to pull guard isn't a disadvantage in judo ... pulling guard is pretty easy to avoid - how often do you see it in MMA nowadays? For that matter, you're not allowed to pull guard in wrestling either, which doesn't seem to be an issue in wrestling's usefulness in MMA. Don't know much about kyokushin, other than the guys I've met who do it are pretty tough - like in any full out combat sport (boxing, bjj, judo, wrestling etc) if you don't have a reasonable pain tolerance you don't do it. MT/BJJ is missing takedowns for MMA, it has to be supplemented with either wrestling or judo ... and if you think that BJJ has enough takedowns without wrestling/judo, you could also argue that judo has enough submissions without BJJ. Neither argument holds in most cases (yes, there are exceptions like Fedor, who's great at submissions with zero BJJ).