BM is the strongest tactic
I just played a game where I was taunting the enemy team the whole game, recalling in front of them, flashing for no reason, etc. It payed off in the end, because they would focus me when there were bigger threats, and at one point 3 of them chased me around the map while my team got top inhibitor. I was loling because they told me I "sucked" in all chat and needed to get a life. Well it looks like I won so who needs to "get a life" now??
Remember: It's not how many kills you get, or how many towers you destroy. How much BM can you dish out before the 20min mark?