Not really fond of the whole black and white morality thing DC has going on lately. Many writers have shown there to be good in Luthor before. I, myself, personally find Lex more interesting when he's bad and good. It adds a lot a depth to his character to have him be a man who's crazy/evil enough to hang out with the Joker--and survive!--and yet be a guy who many people have reason to believe is a good person because he has helped them out in some way.
Evil characters are a dime a dozen, but the real Lex Luthor is something else.