These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Lex Luthor
Awesome Ego: Luthor is at his best when he's bragging about how great he is.
Rooting for the Empire: Can happen due to the nature of the conflict between an unpowered human and an alien god.
Strawman Has a Point: Luthor's fear of aliens certainly isn't groundless, given the existence of the likes of Zod, Brainiac, and Mongul. The fact that of all these potentially and genuinely threatening aliens Luthor tends to focus all his hatred on the alien who is trying to help (and is upstaging Luthor in the process) is pretty telling, however.