For some video files, DivX Player has better quality than any of the other media players that I have tried. But that is only a select few video files. VLC, JetAudio and other players have about equal quality on most video files that I have tried in the past.
The one thing that I can't stand about DivX Player it is very slow at launching and at the start of playing each file about (45 sec) delay compared to JetAudio. So if you are in a hurry then might consider skipping DivX Player.
I have in the past used it but now after trying VLC and so many others I have come to the conclusion the best option for me is the x64 portable (x86 and installer versions also available) version of MPC Home Cinema which has built-in support for practically anything audio or video and no extra bloat. It does EXACTLY what I expect of it and nothing less, has never for MANY years ever given me any issues and considering the recent mention of security ricks associated with VLC I think it the best option. Maybe you'd want to give it a chance yourself? http://mpc-hc.sourceforge.net/