KN last year, turned up Friday evening so was a little short on space, but still exceeded expectations. Houx Annex this year, a bit more green, a bit more space and a bit more entertainment (at roudabout Sunday night) and better fireworks!
The main differences we've found is location in relation to the track/bars/stands etc. We all had mountain bikes this year which was an absolutely inspired idea!
Only been twice but not had any thievin' gypsy problems. People like to go with what they know, so if a site is good enough, they go back the following year. This also helps people meet up with friends they met before.
HTH!