Web Bike World works for me, they have weights, quietness, comfort, size 'n shape, brands. I dun bought me a SHOIE GT AIR years ago based on their info, and have been very happy with it. It's quite, came w/ pinlock and drop down visor. This was a 1st generation, and now they're selling a 2nd gen which people don't like as much. You should always try 'em on before you buy though.
And then there's this guy