I felt going in that this was going to be a down year for Nintendo, and it was!
The frustrating thing is that it didn't have to be. Even if we limit ourselves to games only coming out in 2015 and early 2016, I felt there are interesting titles for Nintendo to push. Also, some neat curve balls like Fatal Frame 5 and Devil's Third. Instead, we had more time spent on stuff such as Yoshi's Woolly World and Super Mario Marker; games that are known quantities and already have good showings.
It would've been a tough job to follow Sony's act, but I felt that Nintendo didn't even try.
I will echo Alex's sentiment that we have Wii U and 3DS games to look forward this year. It's just a shame that they weren't well presented.