-The first one is more practical, BotW is the only game that has a real physical engine. Everything you can do affects your surroundings, instead of attacking your enemies you can tie a balloon to a bomb, set some grass nearby on fire so that the balloon hovers higher, then make some wind with a fan to move it and explode the bomb when it's near enough to your enemies.
-The second one is more "romantic". No game makes you feel the sense of exploration like BotW. You don't have to do anything, you just wander around, something will catch your eye and you've made yourself a quest, that's all the game needs to keep you playing it for hundreds of hours. Just imagine that I've played 120 hours BEFORE I decided to fight the first boss.
@Tom Damn, that makes me want to get a Switch even more lol. But just those reasons don’t make it the best game, because the best game really depends on someone’s opinion, like I know a guy who liked Bloodborne better.