What is your favorite and least favorite bosses in the series?

So I haven’t played all the games because I never owned a 3DS/DS but I am curious to see what other people think about this KH1 Fav: Riku/Ansem- This was the turning point for me when I found out I loved these games Least: Ursula- The whole underwater world was a nightmare, and this boss fight just added insult to injury KH2 Fav: Xemnas- This was pure insanity. Everything finally pulled together in the story and it did not disappoint with how epic this fight was Least: Demyx- I remember getting stuck on it when I was young because of the timed portions. Playing it again as an adult, it wasn’t any better. Tedious and way too much strain this early in the game for one of the worst organization members BBS Fav: Vanitas vs Ventus- This was such an epic showdown and lead to such a great villian for the rest of the series Least: Braig- I found all these fights pointless because the character never made any impact to the story DDD Fav: Xemnas- He can do no wrong, best villain in the series Least: Young Xehanort- It still makes no sense to this day why they felt the need to bring in time travel to this saga and I can not stand him KH3 Fav: Data-Marluxia- Challenging but fair. He has his one timed attack that is a pain in the ass, but he doesn’t pull the same BS that Xion does by making your health bar drop all the way down Least: Data-Xion: This one may be controversial, but Xion is not this powerful. The fight is overwhelming in her favor because of all the nonsense she pulls with putting your health down to nothing if you miss a couple blocks. I know it is suppose to be hard, but it is 10x harder than the rest of the data fights and they are already very challenging