Let's see, I had a few towns in ACG, switched memory cards a few times, but my first town ever was named "A**Town". I was like 13, hush. :x
In CF I went with Glacia, hoping the place would look great in the snow. Before I found out how horrible CF's dirt pathing was.
For NL I wanted something that reflected water in some way, so I came up with Mistvale. It was almost "Mistveil" as in a veil of mist but I decided against it. Though my TPC signature still uses that idea. I spend time on the idea before the game was released in America I was so excited.
I only have really played New Leaf, and I have had two (technically three, but I deleted the first one because I didn't like my town name) towns. They are my hometown, Viridian, and my new one, Cerulean! As you can tell, I like Pokemon! In fact, if I decide to buy a second copy, I'll probably name it after another Pokemon town and if I do a horror-themed town, I'll name mine Lavender!
My GC game was Oink. I forget Wild World and CF since I never really got into either of those lol. My first town on NL was $waggy because I thought it would be funny and I recently reset and named my new town Fable (though I did briefly consider naming it $waggy 2 lol)
All of my towns to date (GC, WW, CF, NL) are named Wishice! ヽ(*⌒∇⌒*)ノ
I wanted something that had to do with Winter/cold/snow etc etc,
and something magical whimsical-ish ...
So I came up with Wishice!
I think it sounds kind of nice and I'm happy with it. (◡‿◡✿)
(It's late and I currently do not remember my super old towns from when I was like 8, unfortunately... haha XD)
Wide World: Big Sur
City Folk: Big Sur, then I reset to Solitude
New Leaf: Solitude
I actually used Solitude because that is the name of the ski resort I go to every year, but I kind of grew attached to it more because it is just solitude. I feel like that really works out for the game, especially in Wide World and City Folk because of the cliffs surrounding the town!
GC: ?ppleby ("apple town" in Swedish)
WW: Zucker (meaning "sugar" in German)
CF: Belville (I made it up; didn't know there was a Lego series and all)
NL: Morimint/R?verie
Wild World: Haus (German word for 'home') It was my first AC game and when Kapp'n asked me where I wanted to go I simply wrote 'Haus' instead of choosing a town name. xD City Folk: Hawaii New Leaf: First town that I deleted after a while: Polaris -> it's now called Vertania (German name of the Pok?mon town Viridian City), second town: Hoenn (3rd Pok?mon Region), third town: Fortree (a town of Hoenn), fourth town: Eterna