Me and my buddies like our seaspecs. We don't have a problem with fogging up. You see better without glasses, but then your eyes get radiated. A local surfing legend died of eye melanoma this year, from years of surfing. You gotta decide what's most important to you.
I've worn the Dakine hat during mid-day surfs in CR and, you're right Gaffer, it's annoying in decent-sized surf.
On the other hand, gringo skin like mine is no bueno in the cooker sun the first couple days, so the lid helps.
Just another trade-off. Like Betty said: what's important to you.
Sea Specs: tried 'em for east coast DP.
Sometimes they fog & sometimes they don't. (Depends what I'm thinking about.)
But after the sun is up, they're a hindrance.
Just for the helluva it, I coated the outside of the Sea Specs lenses with RainX; it actually helped the beading.