I think it has to be Dreamcast, so many great games in such a short amount of time, shame it didn't use DVDs, it would've held its own against the PS2. Only the Switch managed a comparable quality library to the Dreamcast in a couple short years!
Xbox One, PS4 and Switch (+ Many Retro Consoles)
'When the people are being beaten with a stick, they are not much happier if it is called the people's stick'- Mikhail Bakunin
Prediction: Switch will sell better than Wii U Lifetime Sales by Jan 1st 2018