Splatoon is pretty solid. I've played it and it's definitely a good one.
I am aware of the Mother sequels, but wasn't counting them since none of them had a USA release--yet their characters continue to appear in USA games like Smash Brothers.
As for the other games...they may not be totally bad Disney sequel quality, but they're getting to be worn out and old. Wooly World is the one I haven't played yet of that list, but a friend told me it was good, even though it did remind him of a slightly updated Yoshi's Story.
Mario Kart 8 may be a decent game, but it just seems on par with a local news broadcast. They are trying to cram too much in and are killing the quality as a result. Seriously, there are like 30 racers in that game, and it's like the Christmas Card list where I don't even know half of them anymore. The number of carts is also ridiculous. The original appeal of Mario Kart was its simplicity, up through the GBA game. The same can be said for Smash.
Mario Maker and Splatoon are the new Nintendo to me. Everything else is in dire need of a makeover. Even the music is getting stale...I used to love Nintendo soundtracks, but I haven't heard a good one since Galaxy.
I am aware there is some new Pokemon game out there, but I could care less about Pokemon and have ignored it since day one. Not my kind of thing. Still, it's nice to see Nintendo in the spotlight as a result of that.