Wrong gen so no? Reasonable choices though.

Sorry my mistake, I've changed the post, I don't know how to delete the post so I edited. Thank you for correcting me.

Thank you, I made a mistake, I don't know how I confused it, considering I am very informed about video games, I think I'm getting old :)

Nah, it's an easy mistake to make even when you know your stuff.

Good choices, Gears 3 on the X actually looks 8th generation. I still need to play skyward sword, I've replayed Wind waker HD, Twilight princess HD and Breath of the wild, and I still haven't picked up skyward sword which I have on the wiiU.

Last of us was a good choice but I personally would give the award to tomb raider just for being more open world, in fact I would still prefer uncharted 2 and 3 because I prefer colour in my games but its just personal opinion.

Super Mario Galaxy 1 and 2

Dragon Quest 9

Dragon Quest 5 remake

Rune Factory Frontier

Mario Kart Wii

Xenoblade Chronicles

The World Ends with You

Phoenix Wright Ace Attorney trilogy

Radiant Historia

Hotel Dusk

Monster Hunter Tri

Resident Evil 4 Wii (though, I think this game as a whole is a little overrated, but the Wii added something special to it with IR shooting)

Epic Yarn

Muramasa

Super Paper Mario (one of the most underrated Mario games of all time)

Smooth Moves

and I admit Wii Sports and Just Dance series (lots of drunken fun, the only game I ever played as a dating tool)

Little King's Story

I am sure I've forgotten many, because this is the generation I played the most new games, which is funny considering the Gamecube and Wii U generations are the ones I played the least (I've probably already played Switch multiple times more than both combined).

Great lists, but a few not included yet that I'd add:

PS3: Killzone 3

360: Forza Horizon 1

Wii: Muramasa, Conduit 2, Jett Rocket, Fast Racing League

Killzone 3 is definitely up there. I think 2 is arguably a more cohesively consistent game from an art design point of view, but 3 was definitely more advanced technically.

Guerilla Games is one heck of a studio as far as tech and engine are concerned. Not far behind Naughty Dog (which I consider the gold standard on consoles), if at all.

I'd even say that so far on PS4, GG has outdone ND.

I'll do 7th and 8th gen, and whatever Switch is:

7th: Without having given it much thought, my pick goes for The Last of Us. I own PS3 and PS4 versions of this game, and I haven't played the PS3 version for as long as I've owned the PS4 version, so it's possible my memory is flawed, but all of the 7th/8th gen Naughty Dog games were bleeding edge examples of how to best use the hardware at the time. For Wii, I recently played and beat both Mario Galaxy games, the full Metroid Prime Trilogy, and almost finished Skyward Sword (twice), and I think my pick goes to Skyward Sword.

Going into 8th gen, my pick may be for Death Stranding or perhaps Detroit. Red Dead 2 looks great, but it has a lot of visual bugs even still today. I played it again last week to try out the online and I was still having weird issues with my character being lit up from a light source that didn't seem right (and the textures aren't always high res on PS4 Pro at least). Red Dead 2 has such a realistic, massive, open-world area to explore, and the attention to detail is next-level, but best looking game I don't think fits it. There are a lot of really good-looking PS4 games (God of War and Horizon should also be mentioned).

On the Switch (and even on the Wii U), I've always been impressed how Mario Kart 8 runs at 60 FPS 1080p given the detail in pretty much every single one of the tracks, and the number of models on screen at a time. If you want your mind blown, check out the episode of Boundary Break on YT, where they use a hack that allows them to freely control the camera and view the tracks from any angle and distance they like.

https://www.youtube.com/watch?v=TA1f6jMMu5U