Well, personally I would choose a dance format from the '90s and 2000s. Similar to Utopia on SiriusXM spinning Cascada, Daft Punk, Deborah Cox, Fatboy Slim, Janet Jackson, Kylie Minogue, Lady Gaga, Madonna and Robyn.
Also, a good Alternative station that plays MUSE, The Black Keys, Death Cab For Cutie, Vampire Weekend, Cage The Elephant, Walk The Moon and older stuff mixed in like Echo and the Bunnymen, The Cult, Depeche Mode, The Alarm, They Might be Giants and Book of Love
And without hesitation I would bring back the Smooth Jazz format with Dave Koz, Brian Culbertson, Boney James, Maysa, David Benoit, George Benson, Al Jarreau, Peter White, Sade and Acoustic Alchemy. I would also bring back Lynn Briggs and we have to have Tempe back to do traffic!