HOLY SHIT. (Idon't like to swear) . You want the best helmet availible , Buy an Arai. That was painful reading this. Too much crap and for to long to change my mind. Your head is worth ,what you pay for !
You wear a $100 helmet you have a $100 head.
I think it is all about fitment. Shoei and Arai tended to run a bit narrower so since I have a wider head this was not an option at all. For street I run with an Icon helmet. On dirt I have a Fly Racing one. Both work well and fit great. You just have to see which fits your head best.
I got a SHIFT AGENT for mine it is comfy to me. Looked at the fly racing helmets but ended up getting mine on closeout at rocky for almost half price for my b-day. I liked the Arai jolly roger helmet but the budget at the time wouldn't allow it.
Funny thing is as long as you wear a helmet your much more protected that those not wearing one. The brand really doesn't matter that much. I survived a 55mph impact on my motorcycle into the side of a car that pulled out 10' in front of me wearing an $100 HJC helmet. I spent a week in the ICU and had some brain trauma but have fully recovered. I would not be here today if it weren't for that helmet. I still use HJC today and not that ARAI and SHOEI aren't worth it... but some of us can't afford $600 for a helmet that if you accidently drop from 1' has to be replaced because the foam liner is shot. All I'm saying is wear a helmet period and you'll be much better off.