I'd like to see... maybe Sabriel by Garth Nix, that could make a good movie, but if you wanted to do the rest of the trilogy it would have to be a TV series. I'd also like to see some of Isobelle Carmody's works adapted, but again it would have to be TV.
They've also started making Terry Pratchett tele-movies/ mini-series... and I have to say, Going Postal was epic, but I'd like to see Nightwatch made. Also the Tiffany Aching books would make for some awesome TV.
Ohh the Garth Nix ones would be cool, but only if done extraordinarily well. Like Chronicles of Narnia well.
Also the Godspeaker books by Karen Miller. The fight scenes would be really cool. Also I could totally see the WWE wrestler Kofi Kingston playing Zandakar. They would also have to be done extremely well. Like two parts for each book because so much is detailed that happens.
Movies of them would never be made I think due to the effort that would have to be put in and lack of the size in fanbase that could guarantee a return on the efforts.
At this point in my life, I've reached such a level of skepticism that I just want Hollywood to leave all of my favorites alone unless they do a DAMN good job of it. The only adaptation I've seen as of late that's been up to my "required" level of perfection was The Hunger Games.
Although many of my favorites were already mentioned, I would love to see some books by Margeret Peterson Haddix turned into film, specifically Running Out of Time, and umm, that series I can't remember the name of... The ones about time travel...
The Warrior Cat series. Period. It would have to be animated, though, because it would look kinda odd with real cats. I've been waiting for that movie ever since I discovered the books. However, I'm afraid that, if they made a movie, it would be horrible @~@