I prefer a baseball cap with the longer bill. I can't ride without glasses, so clear lenses are crucial to me. Cold weather cycling with fogging is an entirely different problem that I solved with a Home Depot type of safety glasses, so far down to about 0 degrees F on a 14 mile commute of about one and a quarter hours.

I don't bother with the safety glasses above about 35 degrees, and have no fogging problems at that temperature and above.