Economy Long Haul: British Airways 777 Virgin Altantic 747/a340 Aer Lingus a330?

Flying from dublin to Jfk in July 10
wondering what airline will i get a better experience on
Flying Aerlingus to heathrow and British Airways onto JFK
Flying Bmi to heathrow and flying Virgin Altantic onto JFK
Flying Aerlingus direct to JFK on their a330's?
Just Wondering !!
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