Most underrated system

[curl-6]

Leynos said:

 Since people love throwing out 80-100 million selling consoles as underrated (scoff) how about a REAL underrated console back in the thread?

A system can sell well and still be underrated; how a system is "rated" can refer to how it is treated in terms of gaming discourse rather then the number of units it shipped. There's often a disconnect between the two.