I think we are limiting ourselves here to the muppets and due consideration should be given to our other fun friends.
Fraggles would be good I think.
Hobbits - no, wont reach pedals
Muppets - depends. Pigs in space dudes would be my chocie. Miss Piggy as the hostie of course.
Pepe the Prawn - yes, cos Pepe the Pilot sounds cool.
Telly Tubbies - No way, they can't speak proper telephony.
Bob the builder - nup , he can only build.
Fat Cat - He is far too rude, wearing no clothes.
Bananas in Pyjamas - undisciplined bananas that stay in their pj's all day would not make good pilots.
I've always thought that they got pilot uniforms wrong and that they should be wearing colourful skivies - so naturally I think the Wiggles would make excellent pilots.