I tried all four but not so sure whether they actually were what I bought em for because specially of the 3-MeO-PCP I had different batches with entirely different effects. I loved 3-MeO-PCE but in me it had a duration of many hours, not just 2-3 but rather 6-8 with some more consisting of aftereffects), it is indeed very warm and fluffy. My first dosage felt actually not just warm but hot, yet in a very comfortable way, reminded me of my early DXM trips where I would be comfortable outside in winter/snow with just a thin jacket because of the ramped-up metabolism. Problem with 3-MeO-PCE was that it came with physical inhibition, e.g. I couldn't speak anymore on a regular dose of it. This abolished the social side of this drug.
One 3-MeO-PCP variant I had felt like a woodhammer dissociative, not psychedelic at all and just heavily dissociative, a bit like I suppose MK-801 to be. Other batch was very psychedelic and threw me directly into one of the very few holes I ever had. This batch was also much more potent and hard to dose correctly. Soon after I overshot the dosage and ended up in emergency care. I can't stress enough how relevant a microgram scale is when experimenting with such potent chemicals.
The x-HO-x ones are supposedly opioids with relevant affinity to the mu opioid receptor but they are also very different from a non-opioid disso + an opioid. The latter was an interesting, euphoric combination (not so or differently euphoric though than deschloroketamine+meth) while the x-HO arylcyclohexylamines felt somewhat off and blunted, I didn't like either of them.
But my winner so far is 3-MeO-PCE. Yet not as good as methoxetamine, and quite different.