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.
Alternative Character Interpretation: Lucifer can be seen in so many lights from the sympathetic to the monstrous. Is he rebelling against a system that's flawed the only way he can? An evil egomaniac only interested in his own self worth? God's pawn in the grand design? The list goes on and on.
Ho Yay: Or possibly Foe Yay? Lucifer's conversation with Michael oozes with this.
Not to mention Lucifer and Raphael. He even mentions that Raphael loved him almost as much as he did God, although this could have been only in a platonic sense. Their scenes together, when they both have human bodies can be quite suspicious.