Pffft! Socrates was all 'guys, y'all can kill me if you want, but I'm speaking the truth!'.
He was basically, like, the Greek William Wallace in a not-like-a-Greek-William-Wallace-At-All kind of way.
And I agree with you about LaVeyanism. It is pretty dumb and shallow in regards to Satanism. What I like about it is the Randian Objectivism. I mean, I don't subscribe to that ethical viewpoint, but it's fascinating, because LaVeyanism helped me to start questioning things that I'd always taken for granted and had never thought through before. I used to be massively bigoted before reading that book, but after it kind of 'opened my mind', I turned to reason rather than tradition and broke down all the prejudices and hate I used to have.
Even though the dogma is contradictory and, frankly, laughable, and even though ethics can be a bit dodgy, it started me off towards a growth of my person, and so it'll always have a place in my heart, haha.
Also, it didn't hurt that my now-best-friend (a heterosexual FTM transman, for the record) bitched me out once for about three hours straight for using the word fag.
You do realise that Dante's Trilogy were nothing more than ancient fan-fiction and that in real life he was a fucking crusader, right? You know, one of those massively zealous guys who murdered the heretics. I'm pretty sure his stuff was just a self-insert piece of work about him exploring the afterlife. (In Inferno, he happens upon Satan, who is both the most terrifying monster and the most pitiable being alive, having been destroyed by his own arrogance.)
Same with Paradise Lost. Kind of. Milton wrote it as a poem glorifying God in a 'God works in mysterious ways' type of way. Lucifer wasn't supposed to be sympathetic, he was supposed to be seen as a whiny antagonist who acted out of envy and set about petty revenge before being bitch-slapped by Michael. :)
Can't speak for the Sistine Chapel, having missed out on going to Rome with my school (400 bloody quid!).