Had to weigh in and vote aggressive. Cheap barracks and easy, free promotions enhance the early rush. While I've learned that early rushing isn't always practical compared to other tactics if opponents spawn far away, the ability to do so with extra oomph is just fun. Massed city raider axes are easy to produce!
A lot of traits have synergy with warmongering...organized, charismatic, protective (tokugawa has godly gunpowder units), imperialistic, financial, etc. Maybe all of them do to an extent (industrious has cheap forges after all). I don't have BTS, but i'm pretty sure there's no aggressive/organized in warlords, which is probably good. I might ONLY play that civ :/.