I've only ever played ACNL but I've had and restarted many games... So far I've had:
Arryire
Lluvia
Salem
Bounty
Valo
and one more that I can't think of, I had barely started it but already erased it for the OYC XD
I bought the Nintendo Power guide to Animal Crossing because I was OBSESSED with the game when it first came out. In the guide, they called their town "Our Town" and I thought that was the smartest thing ever, so I copied them lol. 12 years later and I still think that's pretty cute.
Wild World - My House (LOL. I was in 3rd grade, and I thought they meant where I'm going, not a town). I was stuck with that name for 2 years ahaha. Good ol days.
ACNL - Mirotic . This came from a song named Mirotic from DBSK / TVXQ. I thought it just look cool. Not only the town is name is Mirotic, but the town tune has the song as well. haha.
I named about 80% of my halfway-finished towns of the past "Sunfield", since I pretty much always want to do bright summer towns... The only few times I chose other names I ended up hating 'em after a few days lol
My first WW town was called Nintown. I saw it in the manual and I couldn't come up with a name of my own, so I copied it. I named my first NL town Japan because I was going through a bit of a weeb phase.