Supervillain and Writers

On my other blog, I posted about how factions of the Republican Party match up pretty well with Superman villains.

But thinking about them, the villains, I though about how I would write them. And I realized that I would writer each in the style of a different writer.

For example, Lex Luthor, I would try to write him a Garth Ennis would write him. Ennis's villains are all over the map, Starr, the head of religious secret society, Ma Gnucci, the harridan head of a crime family, God, but they share certain characteristics. One, they weild an incredible amount of authority over other people. They are supremely arrogant. And though they profess to have only the highest ideals, in reality they are motivated by survival and satisfying their most basic desires. All of which fit Luthor to a T. But more than that, Ennis knows how to write a complete bastard that we really, really, want to punch in the face. If Superman isn't at least tempted to throw Luthor through a wall or two, then he's not Luthor.

Brainiac, the alien intelligence, I would try to write as Warren Ellis. Ellis writes bastards too, but his bastards tend to be the hero. Ellis's problem is that, though he pretends otherwise, he cares about people. His best villains, therefore, are monsterous intelligences, like the Four from Planetary, forget their own humanity and consider other human beings noticeable only as resources and playthings. Brainiac not only is an alien, but he moves away from his own biological original form, and away from anything Ellis or the reader could feel any sympathy for.

Mr. Mxyzptlk (which I spelled right on the first try... I am such a nerd)

Anyway, Mr. Myxzptlk is a fifth dimensional imp who not only can do anything he wants, he knows he's in a comic book and can bully and cajole the editor into shaping the story as he would like. That kind of fourth wall breaking meta-commentary is right up the alley of Grant Morrison.
Those are the ones I can think of off the top of my head, and as far as I know, none of these writers have not written these characters.

Are there any other characters that should be written by certain writers, but haven't been yet?