Aside from the watered down personalities, I really miss the constellations and two certain events that I remember clearly:
1. Where you can go to villagers' houses and buy their furniture from them and vice versa
2. That contest on who had the best garden in town (but me being a little cheater, I just stole all my villagers' flowers and planted it around my house)
and I really loved the soundtrack for ww especially when they flash the title before you load up your file.
ACNL has definitely made a lot of improvements that's already been stated such as the graphics, pwps, etc. but they should really bring back the ability to still talk your villager out even if they're in boxes.
Okay, this guy wasn't in ACWW but they should really bring wisp back in the next AC game instead of us just seeing an alien on tv.
Omg! I completely forgot about the constellations, soundtrack, and Gulliver when he was an Alien! This was also some of my favorite things in acww.