MCO or TPA to LHR Which has the better UC experience?

Hey all.
I'm in the fortunate position to have enough credit card miles and reward vouchers to fly our family of 4 back in UC from our trip to Florida in October/November next year (We've stupidly booked our holiday to coincide with the direct route from MCO-EDI stopping for the winter so having to fly back via LHR)
I wanted to ask in your opinion what is the better Upper Class Experience?
TPA route appears to be on the nice shiny new Airbus A330-900neo while the MCO route will definitely be a Leisure layout A350.
looking forward to opinions and if anyone has experienced the lounges at both airports (Tampa and Orlando) that would be great)
I'm in the fortunate position to have enough credit card miles and reward vouchers to fly our family of 4 back in UC from our trip to Florida in October/November next year (We've stupidly booked our holiday to coincide with the direct route from MCO-EDI stopping for the winter so having to fly back via LHR)
I wanted to ask in your opinion what is the better Upper Class Experience?
TPA route appears to be on the nice shiny new Airbus A330-900neo while the MCO route will definitely be a Leisure layout A350.
looking forward to opinions and if anyone has experienced the lounges at both airports (Tampa and Orlando) that would be great)