VLC

What can I say? MPlayer never let me down. In the other hand, I liked a lot Dragon Player on KDE though GUI is not my thing.

VLC

smplayer, which I learned about on this forum.

Mplayer is the best

XBMC, but maybe that is in another category?

VLC seems to be the only video player that hasn't given me any problems yet, although I haven't actually tried MPlayer yet

VLC...although the whole "cannot be run a root" is not cool

mplayer. Play music with it too!

Use xine for DVD's , Kaffeine for digital tv....xine-lib/xine-ui doesn't lock on tv signals as well as Kaffeine does!

Use mencoder for my own DVR recorder of both Digital and Analog TV channels.

I Sadly and regretably voted for Totem instead of VLC :-( I just love Totems Youtube feature and makes it very easy to save a flash video if I want to. But VLC is freaking AWESOME in its own right for playing litterally anything!! Just in my personal use I have not yet found a video Totem wouldn't play. But do have VLC install just in case :-)

mplayer and vlc both

VLC ;)

Mplayer. No fancy GUIS, just straight mplayer from the commandline, I've learnt the important keys.

(s)mplayer