Brief description of AC:WW from the perspective of someone who played the original AC
1) The multiplayer is well-executed. Tag mode provides a way to encounter new people in public places. Wi-fi allows meetings with friends across the country or planet. Improvement over the previous game.
2)More storage space. Bureaus and cabinets allow access to 90-item storage. Gives you more space to store your stuff. Improvement.
3)You hold only eight design patterns. The displays in the Able Sister's cost bells (the in-game currency) to buy-- or sell. Pattern drawing is less tedious on the DS.
4)The player cannot ask villagers for favors to fulfill. These were hit-and-miss in the last game.
5) Villagers will have little contests with you; finding a certain kind of bug or fish is common. Competitive.
6) Tom Nook's store improves as you play. You can earn more space and items for sale and suffer fewer errands at the start of the game.
7)You start with less villagers and gain some.