Mine do change from time to time depending on my mood or if I just "get into" playing it again. But right now:
- Asteroids - arcade
- Joust - arcade
- Donkey Kong - arcade
- Galaga - arcade
- Frogger - arcade
- Double Dragon - arcade
- Phoenix - arcade
- Centipede - arcade
- Tempest - arcade
- Tron - arcade
I am still biased heavily towards the classic era of arcade gaming. I still feel as far as gameplay goes those simple, games have more entertainment value than most of the graphic intensive games that have come out the last 10 years or so. I have a list of 50 or so "classics" I still routinely play.