Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Every Linux distro comes with a handful of them preinstalled. But are they really the best choice for you? What if you like watching foreign movies? Do you need subtitles? What about tagging and rating? What about online music stores? Are you anti-mono? Do you need radio streaming and special codecs? What about high-definition movies?
I'm a fairly conservative user, but I still believe I do possess the basic instinct for beauty and style. If you think my advice could apply to you, have a read and see what media players out there are the top choices for your distro.
On the KDE desktop, my first choice is Amarok. Now, there's a dispute between Amarok fans as to whether the older version 1.4 is or was better than the current incarnation, at increment 2.0. Regardless, Amarok is an excellent media player, with lots of cool stuff.