Animal Crossing was below 1 milion on Wii U, and last entry on 3DS was 3m+ with bigger userbase.

Luigi Mansion 2 sold good ( over 5mln ) but it took it 4 years to do so.

Pokemon yeah will sell but for example Lets Go did worse initially than Sun/Moon in the UK for example.

So, Pokemon sure, the rest, not so much.

Animal Crossing on Wii U is a spin off amiibo game, AC averages 10m.

yeah its been obvious since they first started talking about 2019 games several months ago that 2018 was the slow year for the Switch and 2019 would be a lot more packed. Add a bunch of indies, DQ, Metroid, obviously more bigger 3rd party games coming, and maybe a couple more things from Nintendo (even just a couple great ports like Mario Maker and HD Wind Waker) and its gonna be an amazing year.

My point is that last 2 entries in the series suffer a big drop in sales. 

Joke post!?

Wii U didnt had real Animal Crossing game (Amiibo Festival is Amiibo base game not real Animal Crossing game), while Animal Crossing on 3DS sold 12m, and thats huge number for 3DS game. Animal Crossing become is one of biggest Nintendo IPs, and Switch will be even bigger (most likely 15m+).

Pokemon Lets Go did sell worse than Sun/Moon initially because we talking about Pokemon game that was launch on lowest install base ever, also we talking about remake of first game and more casual orianted not about new game, while Pokemon 2019. will be next gen Pokemon game.

Luigis Mansion 2 selling more than 5m on 3DS is also very good result. Also, dont forget Fire Emblem, that will also be system seller in some degree.

At end, both Animal Crossing and Pokemon Gen 8 will be huge system seller games, with couple one smaller ones, and we just talking only about currently confirmed games while we are still in 2018.

Wrong point, animal Crossing sold 12m on 3DS thats same number like same IP sold on DS despite DS had more than twice bigger install base compared to 3DS, so Animal Crossing is now more popular IP than ever was.

Its certain that Nintendo has more unannounced 1st party and 3rd party exclusive games for 2019, I mean we are still in 2018. there is no way they announced hole 2019. lineup in 2018. in most cases Switch games were announced in less than 6 months before launch.

The post with hard sales data is a joke post, sure. 

So far, the best selling Switch games are Zelda/Mario/Mario Kart after all these big and good games Switch is receiving every month.

But point is that Switch didnt had any big release like those after Mario Odyssey until Pokemon last month that we know 3m in just first 3 days, games like Lets Go, Smash Bros, Animal Crossing and Pokemon Gen 8 will be also be huge sellers like Zelda/Mario/Mario Kart were, they will all easily sell more than 10m (probably more than 15m).

Listen, I wish them all to do well,  but I dont think they will sell that much, and this is not  groundless bold prediction like quickrick's talking. 

For me, we are talking about Mario Party-like games, not Mario Kart. Except Pokemon ofc, but I dont see them crushing everything again. Times changed.

If your grounds for AC Switch not selling well is because a spinoff on the wii u didn't sell well, you might as well not have any grounds at all. 

Mario Party like sales? I dont see how you can compare Mario Party IP that usualy sell around 2-3 with IPs like Pokemon, Smash Bros and Animal Crossing that are all 10+m sellers IPs, and with fact how big/strong Nintendo games selling on Switch, they are all easily 10m+ sellers and very likely 15m+ sellers. Nintendo already reported that Pokemon sold just in first few days 3m, Smash Bros Ultimate will be even stronger, both games should be around 10m at end of December.