Flitefest is going to be awesome. I need to decide If I want an allied themed Baron, or if I should do my own thing. What's the most appropriate gaggle? A mix of planes, or everything the same?
I think having a the common elements be the WWI (1916-1918 ish) physical lines will awesome - they don't all have to be the exact same plane, but all drawing from the same period for the shape. And having almost every plane be a unique color scheme - so long as again, it's drawing from period paint jobs.
Then not only for us flyers, but all the bystanders get to see something new and exciting with each plane, while still recognizing them as all being "together" through the shapes. And everyone can talk about which one they like best, and "oohh - but that one has this awesome markings" and "the wing sweep on this is so cool".
Just my 2 cents