New Leaf. I had never heard of the series until I saw YouTube videos on it when it first released and decided to borrow a copy from GameFly. I got my own copy a year later for my birthday and have stuck with the series since.
I started off with New Leaf. I remember it was pretty great and I want to go back to it sometime. It'll take me a while to readjust to the gameplay since I've gotten cozy with New Horizons already...
New Horizon’s was my introduction to the series. Got into it because someone on a discord server mentioned it and I wrote I should check it out and one thing led to another and I brought it and here I am. Lol.