Much more better. More pace, more words, more engagement, more action, more character, more depth, balanced cinema score, visually stunning, must I say more? - just more of than the first (I hold my tongue), plus viewing Dune 2 on a bargain day doesn't hurt.
I forget, why not the director add the voice at the end, when Paul Atreides could had cracked the body in the ground like the first original movie in 1984. That would had been epic.