Will Boxee/Plex et al play 720p? Best ATV hack playback?

[srexy]

For those times that handbrake just won't or can't convert to .m4v files which of the TV hacks offers the best playback - both from a quality and ease of use standpoint?

I've already got boxee and xbmc installed & from my limited experience with them both I would say that boxee is just too buggy and slow for my taste. I've yet to configure xbmc correctly to read from my media server but my initial impressions are much more favorable.

Any input appreciated.

 

[Cave Man]

720p is really only possible with the Apple TV's Front Row. XBMC is not able to play it without dropping frames.