1. Learn to type/speak.  "Helmet or a company"?  What the hell does that mean?
2. Just make one thread with a bunch of questions.  No one wants to see your name all over the page...sorry, you're not that speshul here.
3. Don't take any of these truly to heart - do your own research too.  It's your head.
4. Most people have the right idea.  Giro's been at helmets for a while.  Other decent ones include RED, Bern, POC, Smith etc.