Dude, read the books.
There's not even a discussion
Tolkien puts you in a comatose stranglehold, forced to never stop reading.
No, seriously, I have never experienced language as vivid as his, you really feel like you're there. There's so much depth missing from the movies, I could write pages about this. Almost no hobbit songs, no Tom, the battles are wrong and at the wrong place or with the wrong storyline, the Ents save Helm's Klamm, not the riders that ARE ALREADY IN THE STRONGHOLD, Saruman's ending is so bad in the movies - I remember getting mad in the cinema as a kid, and subsequently people getting mad at me, MORDOR IS EMPTY xD why is mordor empty?! (Frodo and Sam are actuallydressed like Orcs for almost the entire time in Mordor), no Two Towers, Boromir is shit(and Boromir is fucking awesome), Faramir is shit (and Faramir is fucking awesome x50), Wizard are just Old dudes who can do some magic spells xD, It's 0% explained that Gandalf, Saruman AND Sauron are all Ainur, that means they are GODS, Frodo is a fucking useless wimp(that's the worst crime)
Hell people who saw the movie thought it was plausible that Frodo could have just taken a Gryphon xD Yeah, get a being even more powerful than Sauron close to the ring, GREAT idea. That's why the Gryphons only come after the ring is destroyed.
OK I'm getting manic about this, I'll stop here :D