What’s Our Rock Anthem ??

Six years ago today, there was a survey conducted in the UK to determine what the favorite rock anthem of all time would be.  No big surprise, it was Stairway to Heaven in first place and Won't Get Fooled Again came in second place.  So what if we did our own survey?

Let's open it up to our friends from "da nort, eh" and make it a North American survey to determine the favorite rock anthem from North American bands.  What song do you think would be the "Favorite Rock Anthem" here?   Free Bird?  Working Man?  I'm curious to see what you'd say...