My only complaint is no Tom Bombadil.....
I’ll have to get my volume of Tolkein’s letters out again, but I think I remember him writing to someone that Bombadil was one of his favorite stand-alone stories and he basically shoehorned it into LotR.
Cinematically it would be a 10-15 minute digression, at least...
Although, some of us wouldn’t have complained much about a 36-hour LotR film series that included Bombadil and the Scouring, as long as it didn’t include too much molten-gold surfing (my biggest complaint about TH:DoS).
I would agree with you there. Jackson did a fantastic job, but he left out much of the whimsy which appears in the LOTR and the Hobbit, especially in the beginning.