I'm not saying that ANY boost shoe is better than ANY Nike shoe, of course that's not the case, and it doesn't need to be.
I'm saying boost is more comfortable than any current Nike midsole tech overall. So in it's best configurations, boost will be more comfortable than Nike's best configurations of their top midsole tech. I haven't found a Nike shoe that is even close to UB, 350 V2 or Y3 ZG Knit comfort-wise.
Also, NMD really is not the pinnacle of boost comfort, not by a long shot. UB is really the main shoe in question w/ this conversation.