Hope you can excuse/forgive my noob ignorance *facepalm*
I've never read the LoTR books but enjoyed the film trilogy for what it was: epic fantasy, with good characters, acting, sfx, etc. I'm sure probably missed something by not having read them but frankly not that bothered.
Same for Dune. First saw the miniseries, which I did find confusing and I must say a little 'cheesy' (esp in costumes, acting, backdrops, etc). Then Children of Dune, which I think was a HUGE improvement. Better directed and shot, better fx, better cast (Krige as Jessica) and loved the main actors as Alia, Leto and Ghanima(sp?). And Irulan

I'd also read a lot in interim about the Lynch Dune, so have seen several versions of that. I can understand why people say the original TV series more faithful (because it has more time?), but visually and thematically I thought the Lynch version vastly superior, even given its age. In a parallel universe I'd love to see an epic film or TV series that combines the best elements of Lynch's Dune and the CoD series. But more than anything, the ending of CoD really made me want to see more. I was fascinated by what Leto was undergoing, and the political powerplay and feel left on a bit of a cliffhanger. Yeah, I can read the book, I know. Anyway, I've googled stuff on God Emperor, and I'm still bemused why people thinks it's unfilmable. I personally don't think
any book is unfilmable. People have said that about a lot of books. All it needs is the time, dedication and talent to get it right.
Oh...(Lynch Irulan moment)...I forgot. Not bothered about a Dune remake, but agree with others here that has to be someone who has style, and can balance character/acting with sfx.