I have the Honda oem deflectors on my G1and recently bought some AVS deflectors for my girlfriend's Jeep.
Quality wise, no comparison.
The AVS are thinner, look much cheaper, and have poor optical clarity when compared to the Honda deflectors.
The only thing I like better about the AVS is that they have a ridge on the bottom edge that helps the water roll down towards the side view mirror. The bottom edge is smooth on the Honda ones and water drops tend to sit there until the trucks starts moving and the air knocks them off.
I think this is a clear case of getting what you pay for.