Lucifer is a bit of a whiny bitch who is just complaining about being in hell every chance he gets. He really dosent like his father (god) for banishing him to hell and blames God for how he turned out. 

Lucifer is often at odds with the other princes of hell because he is just too prideful to let them gave more then him because he feels like she should be king of hell (wich he is). He wants as many human souls as possible just so he can be petty and not let his father have them. 