Yes bro, and i have tried stock android too a few times with Nokia & OnePlus but never liked them. A Galaxy J5 worth 10k is better than 50k Pixel or OnePlus or Nexus for me. Just my personal preference, no intention to hurt others.
Ya I feel the same. Samsung's USP is it's great UI. Stock Android can be used in any phone upto some extent by google now launcher.
Though I don't own. a premium smartphone as much as you but I am also a great samsung fan. Even i extended these samsung legacy to my family & friends. Even my friends call me brand ambassador of samsung as I keep promoting it.