We did Virgin LHR to MIA. Heathrow is better for us, better plane than LGW to MCO with Virgin and the drive up was ok. Next time when not 5 of us may well stay in Miami and drive up early next day but if we couldn't do that we would still prefer that flight (with Virgin). One more flight with Virgin will use up all our 'miles'. We always check other prices but as we have the miles and money price these have always been cheapest.