Seconded. Del Toro would be great indeed (in case we can't have Tim Burton
). Just imagine his Mirkwood, or Gollum... I would definitely love to see a more "artistic" Tolkien-film (not talking about Tarkovsky or anything, but rather... umm... well, like Pan's Labyrinth compared to Wolfgang Petersen's Troy, if you get what I mean), and Del Toro would be just the man to do that.
As for Sam Raimi... well... he's just wrong. Is there a chance that he'll indeed direct the Hobbit?
I have nothing against PJ producing, though that might be because I don't know just how much influence does the producer have on the content of the film. If not much, well, then everything is fine. It would be sad indeed if all the Tolkien-related films should concentrate on the vision of one man. Del Toro, I'm sure, has a vision of his own of Middle-Earth, and most probably one that isn't too much like PJ's.