That whole "well, what have THEY done on their own?" thing kinda irritates me. A character doesn't need to always be the centre of attention or act on their own volition to be a good character. Amy trusted the Doctor, that's why she, by and large, went along with his decisions. If you had someone you knew was your clear superior in an extremely dangerous situation, you'd defer to their judgment, too. If anything, Amy was more human.
"I'm in an extremely dangerous situation where I may very well die. Should I follow my own instincts, or the man standing next to me that's clearly survived fucking wars?" Really tough decision, I know.