And for the sake of this topic "critically successful" means games with a 75+ metacritic, which is where Metacritic draws the line as "good".

There is of course the issue of what to do with Nintendo as they have a brand new console out right now, should we combine the Wii U and Switch libraries? Or since Nintendo seems to be porting everything over to switch from WiiU anyway we just count those ports as Switch games and call it a day? 

Moving on to help you all make an informed decision I have compiled a list of last gen games by each of these companies for (360, PS3, and Wii). So check it out first and then we move on to where each of them stands this generation so far.

Nintendo Games for Wii:(28)

Games with 90+ metacritic: (7)

 Super Mario Galaxy 1/2

 The Legend of Zelda: TP/SS

 Super Smash Bros Brawl

 Xenoblade Chronicles

 Meteoroid Prime 3

Games with 75-89 metacritic: (21)

Kirby's Epic Yarn/ Return to Dreamland

New Super Mario Bros. Wii

Donkey kong Country Returns

Punch Out

Sin and Punishment

Super Paper Mario

Wii Sports/Resort/ Fit

Mario Kart Wii

Wario Land/Ware

Rhythm Heaven

Art Style

Metroid: Other M

Mario Strikers Charged

Fire Emblem: radiant Dawn

The Last Story

Excitebots/ Excite Trucks

Microsoft games for Xbox 360:(27)

Games with 90+ metacritic:(8)

Halo 3/Reach

Gear of War 1/2/3

Forza 2/3/4 

Games with 75-89 metacritic: (19)

Fable 2/3

Left 4 Dead 1/2

Shadow Complex

Project Gotham Racing 3

Halo 4

Dance Central 3

Forza Horizon

Dead Rising

Viva Piñata

Halo ODST/ Wars

Crackdown

Alan Wake

Perfect Dark Zero

Kameo Elements of Power

Banjo Kazooie: Nuts & Bolts

Lost Odyssey

Sony games for PS3:(54)

Games with 90+ metacritic:(11)

Now let's take a look at where each of them stand this generation:

Nintendo games for WiiU: (19)

Games with a 90+ metascore: (3)

The Legend of Zelda: BOTW

Super Mario 3D World 

Super Smash Bros. Wii U

Games with a 75-89 metascore: (16)

Mario Kart 8

Super Mario Maker

Pikmin 3

Xenoblade Chronicles X

New Super Mario Bros. U

Donkey Kong: Tropical Freeze

Splatoon

Captain Toad

Pushmo World

Yoshi's Wooly World

Wonderful 101

Nintendo Land

Super Luigi U

Pokken Tournament

Hyrule Warriors

Paper Mario

Microsoft games for XB1:(11)

Games with a 90+ metascore: (1)

Not Ms, its really between the big two.

Either or, won't be much difference between them at the end of it all.

Big two? Switch is selling better X1 since day 01. So if there is "big two" is Sony and Nintendo 

Anyway, PS4 will have more 75+ games just because it has more games in general

Remember we're only talking about games owned by MS, Sony and Nintendo, not 3rd party stuff.

I am lost.

you say this generation and I'm seeing PS3, 360 and Wii? why?

and you are considering adding the WiiU games to the switch because they could all be ported over? if that's the case doesn't that mean the XB1 also has all the games from 360 and even the OG XB because they work on the XB1 with upgrades?

I'm lost.

That list needs DS and PSP games.

That's just for reference, this gen obviously isn't done so I listed the last full generation so people can see what kind of output each company is capable of in a generation.

As for Nintendo, I was just throwing out ideas as to what we should count as this generation for them? Is it the Wii U? or the Switch? or both?

No it does not. MS doesn't have a handheld so there can't be a comparison. This is a look at the console market only.

If you'd like to make one for the handhelds feel free to do so.

Sony, as they will have a significantly larger number of games, period.