For us the sleep aboard expereince WAS "the" main difference. BVIYC boats were nicely maintained and staff gernerally helpful and nice - certainly more individual personality than moorings although I also find their staff very helpful and nice. Bit the bases just cant compare. You out in the harbor staring at a tanker (we were at least) at the end of a dark row of self storage with few to no stores AT the base. No pool, no great showers, no deli or coffee in the morning, no restaurant, etc. Now if those things dont matter (they didnt when I was younger) and you are willing to pay more then go with Moorings - however we certainly have had positive charters with BVIYC like others. When you do a 5 day charter, the overnight matters - less so for a 10 or 14