For Wii U thats not suprise, Switch already suprised number of available/announced Wii U games last year, but its intresting that Switch already (so only 1.5 year after launch) recently suprised 3DS numbers of available/announced games, while 3DS is 7 years on market.
Until years end it will surprise Wii number of games also easily.
-Wii - 1.528 games
-Switch - 1.382 games
-3DS - 1.299 games
-Wii U - 759 games