Germany and France choosing Wheatley from Portal II is a odd. Very niche. I had to Google, I had forgotten that was the character's name. Japan owns the intellectual property rights on your imagination.
I find it odd that Mario wouldn't be #1 in the US... since he's basically our prodigal son of video games (created by Nintendo of America to appeal specifically to this market). *reads methodology disclaimer* Oh, that's why. Garbage in, garbage out. Here's the WW list: