I don't know, J.. I controlled my kids very well on plane trips, unlike some people I saw. We flew a lot and my kids learned what it was like. I did have one awful flight with my 2 year old one time - he finally fell asleep after being so upset - whew!
One international flight had a group of junior high kids on it. My older sons and I were in the back of the plane, and the flight attendant asked us to move farther up - the attendants wanted more room to spread out. My older son took some stuff up there and came right back, telling me it was that group of kids who were running around the concourse before boarding the plane. I put back everything we had pulled out and sat back down in our old ticketed seats. When the attendant came back and asked why we didn't move, I told her that I didn't want to sit in the middle of the junior high kids - I'd never get any sleep. She was so mad at me that she ignored us through the entire trip. (Glad someone else was willing to feed us!)
Later on, she found out how awful those kids were - one threw an empty coke can at her. They were crawling over seats and bothering everyone around them. I heard her talking about it right before we landed. I told her that I had seen how they acted before boarding the plane, and now she knew why I didn't want to sit with them. There at the end, she was a lot nicer to me.
So I guess I'd rather sit near little kids because they usually get really tired and conk out. The older ones who either aren't supervised or the parents don't care, can bother people a whole lot longer than the little ones!
Dawn