Unless we can sit together on a widebody on either side, we reserve two aisles, usually across from each other, but will take any aisles.

Often, other "broken" apart families, or most often, the person with the lousy middle seat sitting next to one of us, will "graciously" offer to move into my aisle so I can sit next to my husband.

My answer is always the same. "We intentionally selected these seats, but thank you anyway"

They slink away