Huh? You may want to check those facts. The X battery is 2716 mah and the 8 Plus is 2691mah per iFixit teardowns. They both use the A11 processor and 3gb of RAM. And the X uses OLED which should be more power efficient than LCD.
Anecdotal what people believe is meaningless.
and in fact real life initial tests have shown literal minutes between the 2 devices usage difference.
- speed (for some reason 8+ on 11.2 seemed a lot faster than this x)
Again, lack of fact checking. Both X and 8 Plus have the same A11 processor and amount of RAM. More than likely the OS isn't fully optimized for the X, considering it's a beta (that you shouldn't be running on your primary device to begin with)
But we get it trying to justify your decision.