OP: "I am talking saleswise."
Hardware sales this gen so far: Nintendo 61 mio, Sony 31 mio.
Last gen: Nintendo 255 mio, Sony 166 mio.
Never underestimate the Nintendo userbase.
Also, popular 1st/2nd party games get more threads pre/post release than popular 3rd party/multiplat games. Nintendo has more popular own IPs than Sony or Microsoft.