An unpopular opinion about AC I'm only sharing here because I'm too afraid to talk about it anywhere else: Isabella is overrated.
She doesn't have much to her besides being clumsy and hardworking which I feel are stereotypical traits of japanese cute anime girls and I think the intention was that to make her super likeable but not for me. Don't get me wrong I don't hate her I am just tired of her being the spotlight every single time when characters like Tom Nook or the able sister have a lot more personality and backstory to them. As of right now she is a really boring character to me.
If one day they decide to give Isabelle a proper backstory and a lot more personality maybe I will change my opinion. Also her design is not to my taste but it not a bad design.
Since I am talking about AC unpopular opinions I wanna share another one. Sasha was overrated XD but it seems just like Raymond favorite villagers don't last long so this opinion won't age well I feel. Recently I noticed the community really loves pastel colors which I despise since I like constract a lot. Sasha is a character with a pastel palette so of course I really don't like it and I'm sure glad he is a lazy villager instead of a jock as some people theorized because I love jocks so my love still stands XD.
I have a theory that the popularity for Sasha also came because people thought he was a girl but it turns out he is a guy and loved him for that but then the same happen with Petri (which didn't become popular because of that) so I don't know. Sasha looks so cute it scares me, makes me feel uneasy. I hate it! XD But it is just an opinion in the end.