In my mind, the Atari 2600 will be the least fondly remembered of consoles, at least within its generation. Between peoples' animosity towards the relative woodgrainy-ness of the console and the lack of memorable driving controller titles (Indy 500 excepted), I think the Atari 2600 won't hold a place in many gamers' hearts the way the Intellivision and Odyssey2 will.
Thoughts?