I recently did LGW
routing with only 45 minutes to connect in ATL
, well we made it to the next plane but it was half empty because people were stuck in Immigration who not only spent 25 minutes with some Japanese tourists each with interpreters but also just decided to go really really slow! But I would say your best bet is still going through ATL
as it is quite an efficient airport and theres always flights down to MCO
every other minute.
Where are you staying in Orlando ??