Brace yourself. My opinion is a bit far-fetched.
Polamalu is good, don't get me wrong. I'd take him on my team. He has great closing speed, and he can play the pass and the run. However, we get tricked by our eyes. When we see his big hair we say, "Wow, he's always around the ball." However, the fact is that many safeties are around the ball as much and even more than Polamalu, but we can't tell who it is immediately because they don't have the hair. A bit overrated, and definately doesn't deserve to be the top paid safety.