True story: I have five kids and for every one of them, from the time they were very young I would always make a big deal about how we be having would their favorite cake for their birthday - chocolate cake with vanilla icing.
I successfully subverted their impressionable little minds so that, for all of them to this day (the oldest now 22), their favorite cake is chocolate with vanilla icing.
Of course MY favorite cake is chocolate with vanilla icing - so I get my favorite cake several times per year!