I started off quite biased against Peter Jackson, because I had to watch Heavenly Creatures half a dozen times in English class at school. Heavenly Creatures is about a historical murder in the city I live in, in a park that I had previously quite enjoyed visiting. X(
Anyway, for me it's books all the way, and the movies can take a flying leap.
I have many gripes about the films, but the one that annoyed me most was how whiny and antagonistic they made Boromir towards Aragorn. In the books he was all "WOAH! The sword that was broken! Please come to Gondor and help us kick some bad guys", and in the film it's all "Gondor has no King and I don't like you!"
There are things I liked about the films too, like the poster below (how Alamy can claim it's a stock photo I don't know!)
And some of the music was AMAZING.
The last bit of The Bridge of Khazad Dum Lothlorien Gollum's Song Misty Mountains (The Hobbit)
****************
Since I'm talking music, here's some stunning unofficial Middle Earth music. Song of Durin - Clamavi de Profundis All That is Gold Does not Glitter - Clamavi de Profundis The Ent's Marching Song - Clamavi de Profundis Song of Durin - Eurielle Arwen's Promise - Eurielle (original lyrics)
And now I think about my experience reading the books, and I did find them quite dull and annoying at times. The Two Towers especially, having one half being about Pippin, Merry and the rest with no idea what's happening to Frodo and Sam, and then the whole second half being Frodo and Sam travelling through dreary swamps. I think these days the editor would have insisted on switching between the parties. But they are what they are, and the movies annoyed me in so many ways that I still prefer the books.