They should make a live action movie and use CG to create Liefeld proportions.
I think Moon Knight could do well, just seems like it might translate really well to the screen. Doctor Strange would be cool but I wouldn't go with the aforementioned Depp. I don't know how they haven't got a handle on The Punisher. I think the FF needs a more traditional Doom.
I'd like to see them try some different stuff in more modest movies. Cloak and Dagger, for example, I think could work in the right film. Just don't throw them untended to the dogs like Man-thing.
I think they are starting to get a grip on it now being more careful in making sure the material is approached the right way.