For some reason I am attached to rhythmbox, even though I only use it rarely.
Most of the times I use audacious.
Gapless, gnome music, never fit my usecases and are heavier on ressources.
I kind of like lollypop, but also barely use it.
I really like museeks, looks like iTunes, but has many flaws. Though it's rewritten currently. Can't build it due to old CPU, but I keep an eye on that one.