They binned the second panto a couple of years ago. Ended up that one would be a 'traditional' panto at the Connaught - written by the great Christopher Lillicrap - and the Pavilion one was more flashy and usually contained some zzz list reality TV or x-factor drop out and a Southern FM...
There is an alternative panto at The Old Ship after Christmas. - Snow White, Seven Poofs and a Piano
https://www.visitbrighton.com/whats-on/snow-white-7-poofs-and-a-piano-p1450271