I live in Tucson, so good ventilation became a big priority to me. I ended with a Louis Garneau Quartz II, and I like them enough that I bought a second after I broke the first last December.
It ventilates well enough that I've done away with my Halo headband, and I sweat like a sprinkler system.
Look for them on sale (Amazon, Nashbar) and you can get them for around half price.
edit....I just checked, and Competitive Cyclist has them on sale too, with a full array of colors.
Last edited by Wileyrat; 06-05-17 at 06:41 AM.