If you're anything to do with Madsonic development, you might think about making that comparison page a lot easier to find. It doesn't seem to be linked anywhere very much.

I'm also uncertain how "optional video player" isn't listed as a Subsonic feature, when 5.x (and I think later 4.x as well) can stream video. I mean, I've actually streamed video from my Subsonic 5 instance, so...