Colecovision.
Which is a totally irrational and nonsense chioce when you look at the hw, but Coleco did one thing that is very much to their credit: They sold it on the strength of the software. Which is how it should be of course, but I have (since) always shopped hardware based on its potential (which is why I like the Atari 7800 too).
I think I still have some of the old brochures around. They really knew how to sell their wares.
I actually rented a CV a few times. Real fine version of Cosmic Avenger.