I wouldn't be interested in 1v1 matches at all.
The 3/4 player teams would be good, matches could be based on historical fights like we did with BoB and Y29 only both sides get a round to play as the Axis and vice versa.
Also, (BF:BC2 inspired) multiple 3/4 player teams could take part in a dogfight where each team flies a specific plane, making plane identification crucial. That's probably too hard to monitor though.
Scheduled matches are crucial as we all know by now.
