Well the Ace is the closest to me by far so I voted for that. Sunday morning would be best as long as we can work out who is who.
Borough Market on a Wednesday evening is London Bikers, isn't it? I must get along there some time, I get the feeling it pulls in quite a crowd.
Personally I think we should have a whole London group, but I guess the river forms some form of psychological divide the equivalent to the Darien Gap.
Oh and you forgot WillandKate's garage in your poll.