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?
CMUS! I'm surprised more people aren't using this. It's very cool, ultra lightweight, and easy to use. Maybe I just like stuff that runs in the console.
cmus is great, it checks all my boxes, and is much easier to work with than mpd imo. The only downside for me is that I can't see any of the cover art :(
There is no great/simple linux music player with proper cover display. Eliza was so wonky when I tried it months ago, the most simple functions didn't work properly (like sorting for release year etc.)