We had many close answers and many different answers one of our main different answer was the knuckles. Now I realize that there could have been a better answers. The main thing thing I disagree with is why they put ankles so high because you really don't need them, it would just make it harder to run and walk but otherwise you would be fine.
Me and my class both agree on the placement of your Jaw,Hips and knees.
I think the jaw is your most important joint because without it you could not eat and then die.
I think that the ankles joint is your least important joint because you could still walk without them and you'd be fine.