Hands on impressions of Star Fox sound good to me. The graphics are basic because the game renders two perspectives at once, at 60 frame per second. I quite like the retro look, there are points where it looks too basic, but Starfox and Starfox 64 were all about simple, geometric vehicles in cartoonish environments. The mix of Platinum and Nintendo should result in another game, which, like Wonderful 101 and Bayonetta 2, I will enjoy.
So in short, on Wii U, I want/will consider buying: Yoshi, Devil's Third, Super Mario Maker, Mario Tennis, Xenoblade X and Starfox Zero. That's potentially six games in the next six months, so I'm ok with that.
On 3DS I want Fire Emblem: Fates, Super Jam Bros, Bravely Second. I'll keep an open mind on the Zelda/Metroid spin-offs and Yokoi Watch.
I was not impressed with Animal Crossing: Amiibo Party, which may as well be called Animal Crossing: Cash Cow. While I was expecting a lot of spin-offs, none of them have the promise of something like Captain Toad, which is disappointing. The lack of any truly big announcements is also disappointing, I was hoping for something like a new Metroid for the first half of 2016.
I don't understand why Nintendo felt the need to spend so long on Skylanders and the Yoshi amiibo, or that ridiculous Mario ending. That stuff felt like it could have gone in seperate videos broadcast ahead of the main event, which is something Nintendo should consider for future years. My expectations weren't high going into E3, because Nintendo have to balance supporting Wii U (a failed platform) and 3DS (a declining platform) against making the best possible preparation for the future of their hardware business (NX). In that light, I'd rather they stumble now than when they roll the dice on new hardware launches. And, as I said, there's a good line up of Wii U software to see me through 2015.