The best nasty weather planes that I know of are your .32-.46 powered deltas like a Diamond Dust. They pierce the wind and have no side area to speak of to get blown around. They are a nice compliment to any fleet, and the .32 powered Dusts come out weighing 2.5 pounds with standard radio gear....so they land / flare to a gentle landing and also fly nicely at lower speeds as you get used to them. Figure on about 130 mph with a OS .32, blurry fast rolls when provoked....but also a fairly gentle flyer on low rates.
They are cheap, simple and easy...plus thrilling to fly.
An easy to see covering scheme that points out which side is up is very important. [8D]