What good helmet?

drlodge

Currently got a Bontrager Circuit helmet, its quite nice but sits a little "on top" of my head and also the straps come loose quite easily. The straps absorb sweat and become slippery, so don't grip on the buckle very well where the adjustment is made. I'm looking to get a second helmet (for best if you like) and at the top end of the range.

Tried the Bontrager Velocis helmet in store, oh boy its light! It sits much lower on my head, also the straps are of a different material/design. Giro helmets seem to be popular and the Aeon seems a nice helmet too. Any one got experience of these top end helmets? Measured my head, its 59 cm so at the top end of a medium.