Rock I think would be my favourite as it tends to be an umbrella term that welcomes in so many other genres. The Beatles are a rock band but they wrote songs which paid homage to dance hall, heavy metal, blues, country etc.
Probably Classical is my first choice.
Then in no particular order,
love Flamenco, Argentinian, Cuban, Cafe Ibizia, music of different Malean musicians, Film Soundtracks various, Baroque, music from the '50's & '60's, especially 'Surfing' music, Swing, Musical Theatre, some female, & male soloists.
So I've a big range from which to choose if I want to listen to some music! Great!