The airline with the best average rating is Air France with 7.5/10.
The average flight time is 1 hours and 10 minutes.More information
LHR-CDG is one of the shortest flights in the world and the days of trays and food in Economy Class on this route are long gone. I don't really care as on such a short flight, I prefer to entertain myself with a book, on my tablet and just enjoy a drink and a snack.
Yet I would advise the airlines to offer more choice of snack with for example, crisps, peanuts, pretzels for the salty option, and chocolates, cookies or mini muffins for the sweet option. And put more than 5 crisps in the packet ! We all know how frustrating it is to eat crisps and witness that they are already gone just after you opened the bag !
All in all, a good flight on British Airways on this short route.