Honey Crisp. I'm also a fan of Gala and Fuji, but once I tried Honeycrisp, it's hard to give them up. I'll also eat Cameo if they are on sale and look like a good crop. Braeburn are also tasty.
I've tried a few others. Most recently I tried a Juici. It was good, but didn't measure up to the others. When our local grocer had some Jazz apples I tried a couple. OK, but still not as good as my favorite.