US perspective, the impact of Wii Sports is grossly overrated. In the US it was a free pack in, so the "sales" are grossly overestimated. The Wii remote sold the system as much as Wii Sports did. Motion controls are still alive, while Wii Sports came and went.

Wii Sports' significance was that it was the first game to really sell the public why the Wiimote was a gamechanger. A controller by itself is just a concept; Wii Sports was the killer app that showed its potential. Few video games in history have transcended pop culture the way that Wii Sports did; it was the foremost reason to own a Wii in the system's early years.

The series also hasn't left; Switch Sports has sold over 17 million and is still selling well.

By overrated, I don't mean it didn't have an impact.  I mean the impact is exaggerated.  I mean we don't see Wii Sports like games often from Nintendo.  Sony and MS don't copy either.  Meanwhile I do think stuff like Mario and Zelda still are running hard and there are many games like those.  

Part of it is the Wii was super hyped for years, sold well, but I believe it crashed hard as well, meaning the impact didn't feel sustained.  

Wii Sports was fun, I enjoyed it, so I am not trying to beat the game up.  I just think it is a bit exaggerated in terms of impact.  For instance, i think BotW has more impact than Wii Sports.  

And for the most part, Wii like remotes are gone.  Nobody uses them anymore.  It was a big thing, that just isn't anymore.  for me revolutionary means sustained market impact, silly example, but cars...  we still drive cars 100+ years later. 

Wii Sports' lasting legacies were motion controls, which remain a thing to this day, and helping popularise "casual" software that appeals to an audience beyond the traditional "gamer" crowd, which makes up a huge portion of the market today.

I get motion controls still exist, but I am not convinced they are often used.  The top selling games seem to have none (or little) motion controls.  either way, I think Wii Sports had an impact, it just wouldn't make the top 10 from Nintendo (for me).  I think the convenience of the Switch decimates anything the Wii did.  

The majority of Nintendo's games still feature them, and they're on by default in most of the best selling first party games on Switch; BOTW, TOTK, Mario Odyssey, Splatoon 2/3, Super Mario Party, Switch Sports, Ring Fit Adventure, Luigi's Mansion 3.

I couldn't find much data from more recently, but in the original Splatoon, 75% of players played with motion controls: https://gamesbeat.com/around-75-of-splatoon-players-use-the-gyroscope-control-method/

Feature seems like a strong word, because motion is 100% optional.  I never used it in Botw, totk, mario, etc.  To me a core feature isn't optional.  And while Nintendo still leans into it (slightly), nobody else is.  I think motion is niche at this point.  

Either way, I do think the Wii was underrated by core gamers, really good system.

My answer stays as Zelda (for software) as being the most revolutionary.  It was so far ahead of it's time.  For hardware, I think the most revolutionary by Nintendo is the Switch, I think it trumps the Wii by a stupid margin.  

Technically lots of things are optional; 4K and 120Hz output, or 60fps performance modes are optional on PS5 yet I'd still call them a pretty key feature. Online is optional, yet still an important component of modern systems.

I feel like we may have had this discussion before to as I am getting a feeling of deja vu; we'll probably have to just agree to disagree on this one. 

I personally wouldn't put Wii Sports as their #1 most revolutionary, just maybe in the top 10.

GoldenEye 007 probably actually has had a longer lasting impact on the broad console market. You look at the top 10 game sellers to this day and there's still Call of Duty or some other FPS game at the top of the list ... GoldenEye 007 really started home multiplayer FPS as a system selling genre for consoles, before that it wasn't a huge genre outside of the PC which had DOOM. 

Wii Sports ... you look at the top selling games of today and there's not a whole lot of influence on anything, even Nintendo's internal offerings have largely ditched waggle controls as the primary control method, going back to just standard controls (this goes for touch controls too) and motion controls are often times these days a secondary option that you can have but not the primary method. Touch control is a funny one because the DS significantly outsold the Wii, but Nintendo barely supports it these days, basically they ceded that almost entirely to smartphones. 

Switch Sports and Ring Fit Adventure are both 15+ million sellers and among Switch's best selling games; this kind of game is still very much a thing.