Medieval Word Wednesday - The History of the Trebuchet

Years ago, when I was young, I watched a really neat video on siege equipment that I checked out of the library. Jump forward to about two weeks ago. I was looking for the SuperSizers series on medieval dining and stumbled across the same video on YouTube. The video gives a great demonstration of the power and accuracy of this great weapon.

Of the two, trebuchet and castle wall, which do you think won?