"different favorite" is correct and usable in written English.
You can use it to refer to two or more different preferences. For example, "My brother and I have different favorite colors- he likes blue and I like pink."
Every admirer of Paul Beatty's latest novel, The Sellout, will likely have a different favorite line.
When they were growing up, what were their favorite toys? A. Different ones had different favorite things.
And because Mr. Anvari and Ms. Unkov have different favorite colors — she loves red while he describes himself as "a blue and green person" — they stuck largely to a palette of neutrals.
They, of course, had a whole slew of different favorite dishes, but we did all agree on one thing: Austin is one of the few cities in the country where you can be running a food trailer one day and be a superstar chef the next.
Mr. SMITH: We have totally different favorite TV show.
Everyone's got a different favorite.
Other spectators will have different favorites.
Everyone will have different favorites; I am particularly fond of Ronald Firbank's "Inclinations," whose twentieth chapter reads, in its entirety: Mabel!
Many chamber music fans regard the Schubert quintet as the most exquisite work in the classical canon, and even those with different favorites — the two Brahms sextets and Mozart's Divertimento in E flat (K. 563) give it a run for the title — list it among the top five.
The driver and front passenger can even assign different favorites to the same hand position.
If you have different favorites by those authors, I'd like to hear about that, too. 1. Charles Dickens, 14.
