The A-frame design is good for all weather(especially for high wind).
They're all predator-proof, sturdy, and easily winterized- Our idea of winterizing is to
keep the coop warm and lets plenty of light in!(Please check out the video on our web site-
"insulating our chicken coop")
We use good materials,
3" exterior deck screws for all structural parts, hardware cloth (1/2" mesh), ...