Basically, the only thing that the two sets have in common is that they both have planes. However there is quite a bit of difference on the inside of the planes. There are a lot more details in the Friends plane. In addition to the seats, there is a rolling service cart complete with refreshments, emergency lighting as well as a larger galley and lav in the back of the plane.
There are 3 cardboard boxes with more Easter eggs. We get a few references to Marvel organisations such as A.I.M., who you may remember from Iron Man 3 as an R&D agency run by Aldrich Killian, Hammer, one of Stark Industries primary rivals which made an appearance in Iron Man 2, bankrolling Whiplash and finally a box with the Stark Industries logo on it.
Bag 7 finished off the front facade adds in a metal detector and the baggage check-in station. I guess you enter from the right and then maybe the revolving doors are where you can walk out to the plane. I'm not really sure anymore. The conveyor belt is a nice addition to the set for playability and is set up so you can pull the baggage cart right next to it.
The middle section of the terminal (between the B and C gate areas) are dedicated to high-end fashion and accessories, among others you will find Gucci, Burberry and BOSS stores there. Other types of stores — many of which have two outlets, one east and one west of this section — include FineFood (domestic and international delicacies from fine cheese to foie gras and craft beer), WHSmith (books), Scandinavian Souvenirs (self-explanatory), and last but not least the five Heinemann Tax Free stores.
The final two minifigures are the Biplane Pilot and the intrepid Wing Walker. Both of these minifigures share the same white torso which is printed with a flight suit design overlaid with dark red and bright light orange flames plus a logo over the left breast. The torso design is superb and it can at present only be found in this set. Both minifigures are provided with a reddish brown aviator cap and dark bluish grey goggles, and the pilot (below left) also gets an alternative to this headgear in the form of medium dark flesh mid-length hair which has only ever appeared in five sets in this colour.