Anybody know how they compare to the shoei's, arai's and AGV's?
- Protection wise, I don't think you can compare them. Shoei and Aria are at a much higher level IMO. The Scorpion 1000 is nice, but just not the same.

Which helmets do you find quietest?
- I always thought my Scorpion was the most comfortable and quietest I have owned. Plus, the windscreen never fogs up, which is nice. It is a really nice helmet. The only downside of the Scorpion is that it's heavy.

Which seem to be the best bang for the buck?
- Do you really want to ask this question with regard to protecting your head? Protection and fit should be your biggest concerns.