When comparing qmmp vs DeaDBeeF, the Slant community recommends DeaDBeeF for most people. In the question“What are the best audio players for UNIX-like systems?” DeaDBeeF is ranked 2nd while qmmp is ranked 15th. The most important reason people chose DeaDBeeF is:
DeadBeef has a lot of different plugins users can use to customize the interface, controls, and options.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Offers some skinning options
Qmmp allows the user to drastically change its look via skins. It can use Winamp and Xmms skins, as well as a list of 12 skins made specifically for qmmp that can be found here.
Pro Small single-window interface
Unlike more popular players that draw a huge window taking up the entire screen, with tons of knobs and menus popping out in new windows, qmmp gives you a single tiny window (that looks pretty much the same as Winamp used to look) with the basic controls and the playlist. The rest is available through a menu.
Pro Lightweight and supports almost all formats
Pro Plugin based
You can extend it with plugins.
Pro Qt-App
No matter what OS or desktop you use Qmmp will integrate well
Pro Clean and simple interface
Pro Depends on libaries
It depends on libaries instead of big fat toolkits like gstreamer.
Pro integrated file browser
Pro Supports cue sheets
Pro A lot of plugins
DeadBeef has a lot of different plugins users can use to customize the interface, controls, and options.

Pro Lightweight
DeadBeef uses few system resources, making it great for low end systems and for those requiring a media player that uses as few resources as possible.
Pro Extremely customizable
DeaDBeef has support for title formatting scripting, like foobar2000, which allows you to customize group patterns, the converter output, the window titles, etc. to your needs. DeaDBeeF also has a Design Mode, which allows you to add new widgets to the interface and move/delete existing ones.
Pro Uses GTK2 or GTK3
Users are able to choose a GTK2 or GTK3 build of the application to use within DeaDBeeF.
Pro ALSA plugin allows bit-perfect pipeline to DAC
Pro Supports single-album CUE files
Pro Smooth and easy
Pro Offers a ReplayGain scanner out-of-the-box
Cons
Con Interface is not particularly intuitive
Con shuffle mode doesn't play an entire huge playlist (over 25 days)
Con GTK-App
So there is basically no integration into non-GTK desktops.
Con Terrible GUI
stop reinventing (ugly) guis. play music and get out of my way.
Con Fails when opening a CUE file
Doesn't work even after 30 minutes of tweaking. Not as good as Audacious.
Con Ubuntu's sound menu buttons don't work
DeaDBeeF shows up in the sound menu; however, clicking the next/previous buttons doesn't do anything.
Con Not as many options as other players
When it comes to options DeaDBeef may not have as many as other more prominent music playing applications.
Con Clunky
I've seen people showing lyrics - but I can't figure out how to make that work.
It's very difficult to use the 'design' function (unlike Guayadeque) to re-arrange and design the interface beyond something like a music list and artwork...
