Clancy Brown's Lex Luthor is the best depiction of the character in any media thus far. It was seeing Lex in the animated Superman and Justice League that made the one in Superman Returns that much more lame.
I still can't believe Singer made him a real estate scam artist AGAIN.
For what it is worth, I just discovered the Kevin Smith Fatman on Batman podcast (figured this might have something to do with all the Batman love here in the last little while)..
If poetv had podcasts, Fatman on Batman would get a jillion stars.
I find it kind of sad that Lex Luthor is the one DC villain who fits into Nolan's idea of the Bat Universe the best, and obviously he couldn't have really used him.