The only way you are really gonna know which helmets fit you right is to go around to your local dealerships/stores and try different brands/models on. When you find one that you think fits, wear it around the store for about 10 minutes (while looking at others helmets) in order to pick up on any possible pressure points. Thus far, the only helm that fits my egg head right is the Shoei RF1000 series.
Good luck man,
D