See my answer above for my personal take on this. TotK is a bigger, longer game with far more things to do, but in filling the delicate emptiness that's at the heart of BotW, they also made TotK... mundane. Greater, by most metrics. But mundane.

When I played TotK, I enjoyed myself a lot, then moved on to the next item on my pile.

When I played BotW, I experienced something unique, and it stuck with me since.

EDIT: Folks, maybe don't downvote OP just because you disagree with them? They opened an interesting discussion and I for one am glad for it.