I personally love that my villagers like Twiggy and Kid cat are up at 6am and Reneigh would stay up till 3 am! I'm a night owl all night gamer so i'm almost never alone!
same here, I usually play late in the evening so I love that my crankies and uchi are always up. But I think 11am-2pm is the best time to interact with villagers since they're all outside then in my experience
I've always enjoyed the mechanic that all of them have different time schedules. I personally tend to be an early bird, so it's nice seeing other villagers that are also up then! I do rarely stay up, but I love the variety!