Wow, what great suggestions from Treasur and the ANON App. From our experience in Tuscany, I'm leaning towards the houses with the most communal seating areas since we will sit and talk. It's not obligatory to talk! I'm sure most of us thought we'd try not to talk about it in Tuscany, but it slips in so it's nice to have enough cosy chairs to do so. I also would push for a sea side house even if it costs more because it means fewer car rentals.
Love the sound of the allotment party, Prosecco allowed I presume! Pink to match my fridge, of course!