+1 for Oakley Canopy. I went to the Oakley store and tried all of them on. The Canopy are very wide. They had the best peripheral vision out of all of them. I also have a Smith Maze helmet and the combination of both I forget I have them on because they are so lightweight and no vision obstructions.
I have a 65cm head. I wear eg2 because they have the best fit of an goggles I have owned or ridden with yet. Have tried fishbowls, fenoms, the dragons with the huge lens, crowbars, canopy and iox Among the mix. The only other goggle I may buy is the iox turbo fan just because I put out alot of heat and moisture...... Their peripheral was ok but none are as good as eg2