Yep... I'm thinking some variation of a helicopter.

I haven't followed this thread but just read the whole... some interesting stuff here but the words that comes to mind after reading the whole thread in one setting is "its all fun".

Examples tend to be gross to make points and I'll agree that the one I'll offer is a bit gross. Most will remember Hanger 9's Ultra Stick 1.20. Many put more than a 1.20 engine on them because at 12.5 lbs, many didn't think they were that much fun to fly. Then Hanger 9 redesigned it into a Lite version 2.5 lbs lighter and at ten pounds but otherwise the same air frame it became a very fun plane to many who otherwise hadn't liked it. Both versions flew and many of each still fly and are valued. I fly a Lite and a friend at the field flies the original... the difference is primarily agility, which includes several sub areas such as vertical and crow mode performance. Crow mode on the original just doesn't do near what it does to the Lite version.

A good bit hinges on what we want from the plane. My friend does not climb as much to do various versions of spins as I do. He doesn't mess with crow mode and I like playing with it. He does have flaps and his flaps down landings are about the speed of my no flaps landings and my flap landings are about walking speed.

So... there are no wrong answers... its all fun.