I've been playing since New Leaf! BUT I've played all of the games since then, including the Japanese version, E+. My favourite has to be Rosie! She's adorable. Now it's your turn to answer. 8)
I'm not a massive fan of HHD but I do love the concepts in it. I think the Animals feel much more alive and interesting overall, and the ability to use furniture outside is a must. It introduced a lot of other super cool things too but I kinda wish they'd have saved these functions for a main series game. The cards could have been used to bring the villagers into your town.
JoJo is too good. I've been watching it for about 2 years now which isn't TOO much I guess but I've been a massive fan ever since.