there is no question. the robot. the thing about it is, it's not just a static emblem, it changes colors, designs and even poses. sure apple can color their symbol or put a neat little design in it, but they can never do what the robot can... show expresion.
I always wondered why the Apple logo has a bit out of it. It's like saying "Hey, we're good, but there's something missing!" Maybe that is where Flash goes? Anyways, I voted for the Android logo, it has some personality to it.