Harry Potter was saved by a mother's love more than once. Harry may not of had his mother but he had a lot of comfort from mother like figures. Whenever Harry needed comfort it was always from a mother figure.
I was disappointed about the portraits thing. I guess they are remnents of the past left behind to educate and better the future of tomorrow. Also, I'm glad the hp fact one cleared it up for me on that part!
I know this is supposed to be a mean girls reference but I Don't know if it's just me but I like the ending in the book alot more. When Harry repairs his wand then puts the elder wand back in Dumbledore s tomb.