I love villains, just in general (in fact this reminds me of a challenge I was considering posting recently as I have been doing some deep thinking about the LnC villains... I might just do that yet). I gotta say, Lex Luthor is still my favorite. Always has been, in (almost) every incarnation of Superman, and always will be. Tempus is fun in a timey-wimey way, and a nice little side story that's not really crucial to Superman (though I agree that he was used exactly *one* too many times). I like Mindy Church, probably would put her in 3rd place. But I love all the villains, really (I'm a villains kind of girl, even though deep down I still want my hero to win. Mostly.)
Off to write a challenge now...
