The songs I listen to the most are Ayu's "trademark" songs (Evolution, M, SURREAL, A song for XX), her rock/angry songs (Because of you, Ourselves, GAME, 1LOVE, Until that day, Kiss o' Kill, (miss) understood, Talkin' 2 Myself, Decision, (don't) leave me alone, End of the world, About You), her Rainbow album (it's such a nostalgic album. I have to be in the mood to listen to this album, but I get in the mood frequently and then I listen to the whole album through without stopping), some select ballads (HEAVEN, Together When..., Carols, Moments), and some random songs (Blue Bird, Girlish, Duty, Mirror/Mirrorcle World, Marionette, WHATEVER).
I listen to a lot of Ayu often.
I basically just don't listen to her LOVEppears, A song for XX, My Story, and I am... albums.