I've heard the saying you can have cheap, light, or durable - pick 2.....

and I believe it to be very true.

The stock Dura-Ace wheels (alu clinchers, all DA from Shimano - rims & hubs) that came on my race bike have been great. They've held up well for about 5 years and are just coming to the point that I will need to replace them- though I rarely ride that bike in the rain. The only drawback to them is that they have aero spokes and if you do happen to need a truing or break one they take a special spoke wrench and have to be special ordered. I did once break a spoke.... but it wasn't really from everyday wear and tear - it was bent in a crash in a race and broke about 6 mos later.

I've been through many, many wheels on my rain bike. I've had Velocity, Sunrim and Mavic rims. All of them have been pretty heavy.... the Velocitys really sucked.... they were fragile like tissue paper in wet weather. All 105lbs of me managed to bust 3 of them out of the 2 sets I purchased and none lasted more than a year. The Sunrim was a little better, though probably the heaviest of the 3. The Mavics have been doing a bit better. They will probably last me 2 rainy seasons. They aren't light Mavic racing rims mind you - but heavy ones meant for mean and nasty weather (CPX23's I believe). All of the wheels I've had on my rain bike have been custom builds.