Crash would definitely sell more on the Switch, it's a more platformer oriented system and it just doesn't have a lot of noteworthy games at the moment even releasing other than smash and ocopath traveller so Switch is my pick.
Plus being an Xbox One owner I don't really care about crash or platformers in general, I'm going to save my money for RDR2, Black Ops 4, Division 2 and Battlefield 5 which are the blockbuster games of this year.