Wild World! My cousin recommended it to me, and so I asked for it for my own DS. I sunk so many hours into that game.. it's a shame that I lost the cartridge.
I even managed to get the glitch where, if I remember correctly, anything dug up gives you bells? I just remember having someone visit my town and give it to me, then suddenly becoming very rich. I also remember not really playing the game 'well'. I just liked to fish, catch bugs, and run around.
Animal crossing wild world. however, I don't remember much of it, so I would say new leaf would be my first entry into the game, since I played more of it and remember more of it too.
NL was my first AC, and I went back to play WW afterwards. However, I don't remember much from WW so I tend to say that NL was the only other AC game I've played
I wasn't allowed to play video games until around middle school, when a family friend was letting go of an old DS. We had one of those R3 cards to load games onto, so I played on that.