Mine is Strawberry since it has a ton of options and plays a ton of formats. It's also (distant) fork of Amarok 1.4 and integrates well with KDE Plasma. I'm curious what other people are using these days. What's your favorite player?
Lollypop. Simple interface that shows me album art. I can't always remember band names or artist names but I know what the damn album cover looks like đź‘Ť
The feature I like the most in Lollypop is the party mode. It lets the user select various music genres from your library and it plays songs that match the selected options