Would/Do you pay more for longer flights to the same place or more flights to the same place i.e which one would you fly?:
BA113 Heathrow-New York JFK B747-400
BA116 New York JFK-Heathrow B747-400
AF1671 Heathrow-Paris CDG A320
AF008 Paris CDG-New York JFK B777-200
AF007 New York JFK-Paris CDG B747-400
AF1370 Paris CDG-Heathrow A320
In that case i'd probably fly the Air France one. Three different aircraft types, three different airports, four take-offs, four landings as opposed to one different aircraft type, two different airports, two take-offs, two landings. For just a little bit more. Of course if it was a lot more then i'd go for the cheaper flight but if it was within reason i'd always take more flights.