Join Date: Feb 2014
Location: Maple Grove, MN
The best suggestions I can make would be to go to a store that has a wide selection of brands and try them all on. Find out what basic head shape you have, and then you can shop for helmets that work for you.
As far as type, I'm a big believer in the full-face helmet. If you look at the impact zones on helmets, the largest percentage is in the chin-bar area. Right now, I'm using a Scorpion EXO-410 for my daily commuter helmet, and an Arai Signet-Q for track days. Both helmets fit my 'long-oval' shaped head, and (most importantly) both have removable padding so they can be washed. I commute on two wheels every day May through October, so my helmets get lots of abuse, especially during the hot months of July and August. My wife and I use Sena SMH-10 units to communicate, and I have mine linked to my phone so I can hear if I get a call (I pull over to talk).
Whatever you buy, make sure you get something that fits. Different brands have different shapes and shell sizes, and having something that won't impair your ability to pay attention is very important. Also, don't be afraid to spend a few bucks on a decent helmet. Your head is mission-critical to riding (and living), so spending more on something that is comfortable and works for you is well worth it.