As someone who has been a lifelong Nintendo owner, I completely disagree.
Nintendo have had an edge on the competition in terms of games quality historically, but this is something they've lost as the generations have gone on. The problem they have nowadays is the new Smash Bros, Zelda, and Metroid titles are the only things they do have, and you just can't build a console around a handful of titles like that. With the Gamecube it could be argued they'd trimmed off the fat and were left with a relatively small set of universally high quality games, but with the move to the Wii, they started cutting off the meat. The game selection for the Wii U is tiny and doesn't look like getting much bigger any time soon, and those franchises you mentioned are all a long way off from appearing. Likewise, PS3/360 have plenty of quality games... more than Wii, certainly... And unless you're buying everything day one, I'm doubtful they're more expensive either.
I'm genuinely sorry, but the Wii U is lost cause. Wii was a success not because it was a good system, but because it made a grab for none-traditional gaming markets and succeeded... But that market isn't as a rule interested in buying a new system now they've got one. Nintendo tried to reach them again, and the result is flatlining sales, and developer support (which they've desperately needed for a decade now) being lost. The Wii original is currently selling more systems per week than the Wii U everywhere but Japan (with sales there still being low), and the combined weekly sales for the 2 systems are lower than the 360, PS3, or 3DS.
You are right in that Sony and Microsoft are going to struggle this time round... they've both made some very risky choices in how they're focusing the systems abilities and how they're handling used games etc... But Nintendo isn't to thank for that, and they're certainly not going to have an easy ride because of it.