I too will disagree with this one. Of the current/last gen consoles I would think the Dreamcast or PS3 will be the least fondly remembered. Not that these consoles don't have merit or great games, but their history will be remembered as a whole. Dreamcast being the console that killed Sega, coupled with their rapid exit from the market, will in the long term leave the masses either ignorant of the console or indifferent to its existence.

The PS3 is a different subject as the history isn't written on the system yet, but I think that its early struggles coupled with the general animosity towards Sony will leave the PS3 as a second tier console. Again, history always favors the winner, and their is still plenty of time for Sony to pull it together.