I think you actually need both. I nice short para about what openacs does (I LOVE the paragraph from the vignette home page), followed by a "what makes us different". There's no point saying how great the CR is if the reader doesn't even know that you can run forums and a blog with it!
This is now my third post this morning with content along the lines of "we need to get openacs.org up to date and great" to promo openacs.
It looks ok, it works ok, people will think that the framework is ok. People don't download something that's ok, they download something that's GREAT.
I know it's been discussed before, but I think we need an openacs.org team, and we need scheduled updates linked to the core code updates - both of the code and the look and feel.
