I think it is pretty good. I've been to Download and i admittedly didn't like it. I really couldn't cope with the layout of the site in general. Walk from camp site to arena was about a half a mile, and After headliners were finished, for whatever reason they'd send you round the long way back and it wasn't very well lit.
Bloodstock feels like a community really.
Hadn't heard of party san till you mentioned it, the line-up looks very tasty.
malevolent creation, watain and satyricon - SQUEEE!