Comment I don't buy the dynamically stable argument (Score 4, Insightful) 65
I don't buy the "humanoids are more dynamically stable," argument by Melonee Wise. Humanoids aren't the only thing that can shift their balance... You could also have an arm that swings out a stick with a weight on as a counterbalance. Problem solved, and with much less complexity than a full humanoid robot.
THere might be other good reasons for going with a humanoid design, but there are much easier things to balance.