THEY'RE STILL THERE GO GET THEMAnimal Crossing for the Gamecube was my first game I ever played! Admittedly, I could be a little biased as a result of this but hey, there's no harm in trying out the game. I admit it lacks in customisation because in New Leaf you could place down PWPs and change your house exterior. With ACGC, you can't even really change your hair colour or hair style or anything. But it has a lot of charming features about it that I just love. I think the dialogue between animals is so much more funny (the snooty characters used to be so rude/mean!), and I also love the music, and the different events that can occur during the year. One event is the Sports Day, I think, and you can do aerobics in the plaza and running races, it's really adorable, and it's a shame they didn't bring back some of those events into newer games. So I definitely think you should give it a go! It's probably most like Animal Crossing City Folk out of all of the games, if you want some comparison.
And yes I love Animal Crossing so much. I've abandoned my New Leaf town lately which I feel bad about but it's really just such a fun and relaxing game to play. I always get scared to check up on my town after a while in case any of my favourite villagers have moved out (mostly Chrissy and Francine).
My faves didn't move out of my town on my city folk file and I honestly didn't play it for 7 years sooo? They can still be there!