My favorite and current winter ice climbing jacket is a patagonia paclite jacket that was discontinued about three years ago.
I prefer nylon as the face fabric for a winter ice climbing jacket as I find that it does a better job bonding with DWR replacements than poly. I reproof and iron my jacket once or twice a season. In my opinion, pretty much all of the membranes kinda suck at least some of the time, and the by far the best results can be had by religious applications of DWR and the iron.
I would only use a 3 layer laminated jacket. A 3 layer laminate has a face fabric, the membrane and then a scrim all sandwiched together. It looks like one piece of fabric, usually with a funny looking interior that gives it away. A 2 layer laminate lacks the protective scrim and instead requires a liner. I personally find the liners to be a recipe for icing and general discomfit. Additionally, 3 layer laminates are generally significantly lighter than 2 layer jackets with their accompanying
I have no interest in extraneous pockets on my shell. One of the main reason I love this old jacket is that the pit zips open the pockets, and that the pockets form 'double' pockets inside where I can stash water or whatever. I am a strong believer in a systems approach to my clothing, and handwarmer/junk pockets exist in my fleece and in my belay parka but not my shell.
The hood is the most important part of the shell. It must fit over my huge HB El Cap carbon fiber helmet, and under it as well. If the hood only fits on top, I find it sucks in full on conditions. The hood should have an adjustment on the back and on each side for the different parts to get it nice and snug. A pet peeve is when the snap lock on the back adjustment string is set up so that it grinds against my helmet. In my experience, when you're out in full on conditions for more than eight hours, your hood belongs under your helmet and it should be as snug as can be...
A drop hem is good, but I really look at the pattern to make sure that I have full range of movement without the jacket riding up on the sides. I generally have a pack on in winter alpine climbing, and then i don't have to worry as much about the back riding up. Keeping your kidneys warm keeps you warm, so that is very important, but in my experience a jacket will let you down quicker by letting cold air in the sides than up the back. (now for b/c skiing... but that's another story.) I almost never wear a hard shell for cragging / ice climbing.
I've climbed over 100 days a year for over ten years now, at least half of it in winter conditions in the states, canada, europe and the caucasus and central asia. I've never really trashed a jacket, so I'm not that concerned about it. Then again, I am conscious of the fact that my jacket is one of the most important components of coming home warm and well, and I tend to 'keep an eye' on it.
Now if you want to talk about bibs, gloves and mittens, well, they're disposable. I've put enough holes in my bibs from reasons ranging from gumbyness to mind gone fatigue...