The problem with Moog is that it is no longer made in America. Malaysia I think. I do not know what the quality is now, but I doubt it is what it used to be. I'd just go with PST.
I have no way of knowing but by the looks and feel, the Moog stuff still seems pretty good. Only problem I had was getting the lower control arm boots to sit right. It's like they were just a gnats *** too small.
PST is just a kit of random parts from different brands put together for you. Me, I'd prefer to know exactly what brands I'm getting before I buy.