I haven’t had fried chicken in a while now mind you, but both when I was a kid and my family would have leftover KFC, and as an adult in the rare occasion I do get fried chicken, I have always loved it more after it’s been sitting overnight in the fridge.
Won’t heat that shit in the microwave or nuthin, just eat it straight cold and love it like that.
I personally don’t like it cold but I’m not surprised that you do - it gives seasoning more time to penetrate into the meat, and the texture gets really different.