The H320 has a better screen resolution so images will look better on it, but the X5 has better a better framerate for video (15fps vs. 10fps) so video will play better, closer to fluid motion. However its still abysmal in comparison to the Vision M and iPod 5G, they play video extremely smooth at up to 30fps, and there 2.5" screens are much easier to view without torturing your eyes. In this regard the Vision M still comes out on top with a better screen (262K colors vs. 65K colors) and longer video play time.
Rockbox is an alternative open-source firmware that in essence offers a couple more features the brand firmware doesn't such as UMS capability, user EQ (important on ipod) and gapless playback as well as more codec support (ogg, flac). it also offers an extremely customizeable UI. For more info
http://www.rockbox.org
in terms of sound quality none of them win, and all of them win, because SQ is an extremely subjective thing, and nobody can tell you which one will sound better to you. people will try to make you believe one is better than the other as usual. as many have said elsewhere, all these players are close enough in overall SQ that the minor differences are neglible. these are all top-notch players, you won't be dissapointed with the SQ of any of them.
Features really depends on what you want. if you want UMS then its the X5. if you have Win XP and want to use WMP or a paysite like YahooMusic, Rhapsody, or Napster then the Vision M is the one. If you want iTunes then its the iPod. in terms of raw features, i think the Vision M has the most to offer.
As i said video quality is best on the Vision M.
I don't think there will be a LCD remote for the Vision M because if the iAudio and iRivers are any indication LCD remotes require an additional data port next to the audio output in order to process commands and info on the remote. The Vision M only has a headphone jack at the top. The Zen Micro remote (no screen) has an extra databand on the heaphone plug, and apparently works fine with the Vision M (headphone out), but that was available beforehand so it was not made specifically for the Vision M. They may make a Vision M specific remote somewhere down the line, it might be possible to run it through the propietary port at the bottom like the ipods, then the may be able to put an LCD on it, (since it doesn't need to add an FM radio
). i got the korean remote for my H320 so i can keep the player in my pocket or bag, but now i'm using it without it, since rockbox is still futzing around with the remotes functionality, and i like to see the wps screen. The Vision M doesnt bother me w/o a remote since the interface is so interesting, though i may spring the $20 bucks for the ZM remote sometime in the future, thats hardly more than a CD.
hope this helps
