I had my first Fatburger in 1970!
My First Tommy's in 1974
It wasn't until the 1980's (???) that I had my first In and Out Burger.
The quality and taste have changed over the years (decades)
IMO
Tommy's has been the most consistent over the years. Nothing beat's it when you want the extra kick of chili
Fatburger was the best (when there were two locations) --BEFORE they went on their franchise expansion run. I really miss the old Fatburger!!!!
In and Out is always v-e-r-y good. Not (always great)
We I make my trips back home to LA - I usually hit In and Out