I have only worn Icon helmets. So i cant compare icon to any other brand since my only standard is icon. They meet and exceed all DOT safety standards. not sure if they are snell approved anymore. I know they now get some kind of world standard test done to them. I used to have a Domain2 Decay helmet. I went down with my first one and my noggin was protected insurance replaced it. I didnt even get a concussion. Now i have 3 airframe helmets. My first was the airframe guardian, second one is the airframe manic, I recently found and bought a brand new gray/silver hayabusa helm on ebay. I almost drooled on my keyboard when i found it. So my opinion is biased lol. The air frame helmets are a little loud (the price you pay for great ventilation *shrug*), but I've never had any comfort issues. The moisture wicking material they used is great. The quick release and the raising and lowering for the faceshield is not always the easiest to operate. especially when right out the box. Give it time to "break in". Ive had my second domain2 since 2007 and the detents are just fine.