I have had 2 pioneers(mp3) and a JVC(DVD).
the pioneers were much cheaper than the JVC so I cant really say that JVC is better just because mine was, but it was

. The only think I ever complained about was that it took a long time to load a DVD full of music but that is probably normal.
I for a long time thought that ALL of Sony's car audio sucks and still think that of most of it but Ive noticed that their high end products that dont carry the Xplod name are amazing.
I will be buying a SONY DVD player for my next head unit
edit: lol I didnt notice I already posted in this thread