Dude you're wrong. Nintendo sells more games, at higher prices and has bigger output.
"Selling games" isn't the greatest indicator of an IP's value. The ability of the IP to push systems and ancillary revenue is. A game that sells 2 million copies to a completely new audience that didn't own your console is more valuable than a game that sells 5 million but doesn't expand the base. Sony consistently puts out extremely high quality titles that attract an extremely diverse audience, thus the value of that IP portfolio. You can get the same third parties on PC or Xbox- but the PS4 sells (and third parties on PS4 sell) because of Sony's exclusives.
The switch will sell well, but can't realistically hit the 120M+ that the PS4 will. The games aren't there.
To put things a different way, Sony's IP being more diverse than Nintendo's attracts a more diverse audience and demonstrates that a certain type of game can be successful on their platform. This in turn enourages third parties to put their games there. Nintendo's IP does not do this- their audience habitually ignores anything that's not made by Nintendo themselves, which is a large part of the reason why third party sales have been completely anemic on every nintendo platform since the SNES.
double edit: to clarify what I mean about "selling games" not being the greatest indicator of an IP's value- the Wii and PS4 have sold "About" the same amount of consoles right now (though the PS4 will continue to sell).
Looking at sales on the Wii, you would think the thing was an incredible sales juggernaut that would never be passed:
1.) Wii Sports- 82 million
2.) Mario Kart Wii- 37 million
3.) Wii Sports resort- 33 million
4.) New Super Mario Bros Wii- 30 million
5.) Wii Play- 28.02 million
6.) Wii Fit- 22 million
7.) Wii Fit Plus- 21 million
8.) Super Smash Brothers Brawl- 13 million
9.) Super Mario Galaxy- 12 million
10.) Wii Party- 9 million
In contrast the highest selling PS4 title is "only" at 19 million, with uncharted 4 at around 15 million at #2. Yet the PS4 will easily outsell the Wii in less time, and is drastically more profitable- so much more profitable that it's not even in the same discussion. The PS4 is likely the most profitable system in history, despite Sony's first party not selling a fraction of a fraction of the games nintendo did on the Wii.
The reason is that the Wii titles were repeatedly selling copies to the same audience. There was no diversity there. Nintendo never expanded that base beyond people who were interested in playing their mascot titles and Wii Sports. The Wii was tracking to outsell the PS2 in unit sales, but when that casual audience lost interest in games like Wii Sports, sales for the system crashed through the floor as they all left en masse.
There also were virtually no third parties successfully selling games on that platform to the extent they were on the PS360, and no titles that generated recurring monthly online subscription revenue similar to PSN or Xbox Live. The "Wii X" IP didn't/couldn't attract either one. By the end of the generation that IP portfolio was nearly worthless. A new Wii Sports or Wii Fit wouldn't attract the interest of anyone right now.
So despite selling less "copies" overall, the PS4 portfolio of first party titles is FAR more valuable than Nintendo's stable of first party titles at the height of their most popular system. It targets and is bought by a more profitable audience, and a more diverse audience.
