COMG! Japan Pre-Order Chart

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Farsala said:

Marth said:

Switch ratios (number is the x in the 1:x ratio)'
Dragon Quest XI S: 2730
Super Mario Odyssey: 2470
AC New Horizons: 2330
Super Mario Maker: 2300
Super Mario Party: 2170
Yokai Watch 4: 1950
Sword/Shield: 1840
Fire Emblem Three Houses:  1700

Meanwhile certain otaku franchises have much weaker ratios:

SAO: Hollow Realization on Switch: 210

And PS4 games:
Ghost of Tsushima: 3000
TLOU P2: 2180
FF XV: 2170
FF 7R: 1500
KH3: 1400
Dragon Quest XI: 1190
Resident Evil 2: 1100
MH World: 855

Thank you for actual evidence :).

Doesn't look heavily biased one way or the other, aside from my comment about anime/otaku games and MH.

Since you put in the effort for some data points, I will return in kind.

3DS:

Monster Hunter X: 546

Switch:

eBaseball: 3060

Atelier Lulua: 623

Xenoblade Chronicles 2: 1503

Super Smash Bros Ultimate: 1305

Attack on Titan 2: 1042

Kirby Star Allies: 1762

Labo: 1329

PS4:

eBaseball: 3269

Atelier Lulua: 660

Fallout 4: 1182

Nioh: 2358

Attack on Titan 2: ∞

God of War: 2095

Keep in mind the ratios of older games look better than newer ones since the chain had more stores in the past and they were still mostly videogame-focused (nowadays they also have a lot of smartphone stuff in their remaining stores), so ratios from games 5 years ago will be much better (as in, smaller numbers) than the ratios we'll reach these days, even for most otaku games.