For myself what i would like is a player with different guis.

It's great to have an intricate gui when you are standing or sitting around. When you are trying to change songs while driving though, its not so great.

So what I would like is a media player that has different gui profiles for what you are doing.

I'm working on making my old iphone a remote for controlling media players, so maybe thats the answer as long as these media programs support dbus.