And I finally settled on an Arcteryx Alpha LT, but after having thoroughly tested the following waterproof shells:
Marmot Super Mica (membrain, 25k, ~8oz)
Mountain Hardwear Xenon (now Amalgam) shell (Goretex Paclite 70 denier, 30K, ~19oz)
Patagonia Spramaster (H2no, ~11.8 oz, no pit zips)
Patagonia Rain Shadow (H2no, ~13oz)
I have found that the combination of lightweight AND Durable is actually possible with the Alpha LT. 13oz, Goretex Proshell, 320 Denier face fabric that is soft but very, very durable. Sure, it doesn't breathe a well as Event, but for the combination of durability and weight, I find it hard to beat. I've skied dozens of days in the Wasatch with it, scaped it against granite, and have had it dumped on with every type of precip. And it still looks new.
And the hood is by far the best hood I have ever used. Super functional.
It just costs a grip ($400-500), but if you can get it under $300, its a steal.