My sister (a year younger than me) was quite the little control freak. However I think she was just mirroring our father when she would resort to verbal abuse and usually violence to get her way.
Sometimes she would just exert control for control's sake though. For instance she would save up her bottled water during tennis, despite the heat, just so that on the walk home she could splash me with it. She would always make me walk one step behind her and if she felt I stepped ahead she would splash me.
Apart from such examples, a lot of our fighting was pretty much innocent. I don't think that true aggression arises unless the parents are a model for it.