The concept of "Favorite Music" is extremely vast for me.
Today I have listened to Schubert, Liszt and Tchaikovsky.
I have Gilbert and Sullivan (HMS Pinafore) in the CD player in my car at the moment.
Recently listened to before that: Supergrass, Nirvana, Brian Eno, Pink Floyd, Steely Dan, Cracker, Muse.
The gf and I were looking at some highlights of Les Miz and Rent last night.
I was playing a few country tunes on guitar and piano earlier (George Jones, Keith Whitley, Tim McGraw).
So in summary I guess what I like is prog rock, folk, classical, operetta, standards, jazzy contemporary, musical theatre, country (new and classic), bluesy, ragtime, barbershop, nostalgia, experimental and a fair bit of Foo Fighters mixed in.
But other than that and a few things I'm probably forgetting right now, I tend to just say NO THANK YOU!