What media player do you use and think is best?

I’ve been using many; windows media player, media player classic (kodec), gom player, vlc player, real player, power dvd player, quick time player, etc.

I use windows media player for general purpose and mp3s (I prefer it over winamp). Media player classic, gom player and vlc player for playing .flv files. Vlc and gom come in handy when I try to load subtitles (dialogs), though gom has better adjustments for subtitles than vlc. Also, brightness/contrast can be adjusted through keyboard in gom player. Real player plays it but somewhat crowded. Quick time for .mov files.
I don’t know how but power dvd player offers the best video quality I have ever seen (I have some dvds, .vob files, power dvd plays it with superior quality than vlc). Power dvd UI is somewhat confusing, but has good looks. Are there any other players like power dvd that play/show high quality? just asking.