This week didn't really see a megaton upset. There were some surprises and a couple underdog winners, but I'm not sure there were any shock victories this week. That said, shocks aren't really what the poll is necessarily about.
For me, it's Chicago over Dallas. It was a big victory for the Bears to go down to Dallas and get a win... plus as Eagles fans is it even arguable that this was the best non Eagles victory of the week? Dallas is 0-2, the fanbase is in a state of panic and Cowboys fans all over the country are putting away their blue and white jerseys and wearing their Yankees shirts in public instead.