I like Mediabox; I'm just tending to use the built-in media player more (have a few MP4 files I've downloaded which Media Player likes more than mplayer, IIRC).

Mediabox certainly has the best implementation of kinetic scrolling, although is a little unstable (seems much more stable when run from a command line, <geek>so this is probably a trivial osso_initialise bug</geek>).

Mediabox's semi-transparent clock is also very stylish.

I wish more respected folders for videos, rather than putting them all in one big long list. I don't like episodes of Thomas & Friends getting in the way of Doctor Who ;-)