Games like Epic Yarn, Endless Ocean 1 + 2, Return to Dreamland, and Xenoblade were all great as well.
There did exist good games on the Wii, but unless it's first party Nintendo, there's a good chance that your options are both limited and not as good as the big console versions. eg. I like Resident Evil Umbrella Chronicles, but it's not up to the standard of Resident Evil games of the time like RE5, which was a game most people hated. Conduit was a fun enough FPS, but doesn't hold a candle to games like Halo 3 or Call of Duty 4. Even mid budget games like Sigularity and Legendary, or previous gen FPS's like Time Splitters and Urban Chaos out class it.
There are games on the Wii I wanted to play but never got around to. Spybots is one, Mario Galaxy 2 is another, I have an unopened copy of Metroid Other M I bought on sale and never got around to playing, but you can usually get better elsewhere.
Nintendo fanboys often like to bitch about how Nintendo only really cares about their Japanese fanbase and weaboos, but Banjo's inclusion in Smash heavily goes against that narrative.
It's kind of true though, especially when it comes to Nintendo of America. Nintendo Europe is fine, but we sometimes get hand-me-downs from Nintendo of America. Having the occasional bone thrown like Banjo in Smash doesn't mean much.
I like F-Zero, but there hasn't been a new game since the GameCube and GBA. They shit the bed with Star Fox by constantly remaking the first game instead of continuing the plot, and forcing in dumb gimmicks. Their disinterest and mistreatment of Metroid is well known, see Other M, Federation Force, and attempts to make the Prime games non-canon. Not counting those games and a .jpg shown at E3 years ago, the last new Metroid game was 13 years ago. I could go on. US fans needing to petition to get some Japanese Wii games released in the states, to the infamous Fire Emblem Fates pickles scandal and other censorship.
I don't think Banjo in Smash makes up for all that. It's a start, but that's it.
Edit: I forgot about Metroid: Samus Returns. It's a remake, so I don't know if that counts. People seem to like it.