Since I'm flying PE for the first time at the end of May, have a few questions I'd love feedback on 
1) Are the Airbus and 747s out of JFK the identical experience - i.e. leather seats, etc - or are the 747s more 'tired'?
2) If the person in front of you reclines fully, is it annoying? Or is there enough room between seats to prevent them from being in your personal bubble?
3) How does food compare to Economy?
4) Any other things I should be aware of before boarding?
I'm flying the JFK > LHR > JFK route.

1) Are the Airbus and 747s out of JFK the identical experience - i.e. leather seats, etc - or are the 747s more 'tired'?
2) If the person in front of you reclines fully, is it annoying? Or is there enough room between seats to prevent them from being in your personal bubble?
3) How does food compare to Economy?
4) Any other things I should be aware of before boarding?
I'm flying the JFK > LHR > JFK route.