I'm not convinced non-breathable is the way ahead.
Unless the membrane is actually damaged the Gore [eVent] membrane is fantastic. People get issues because they do dipshit stuff, thinking mere possession is some sort of magic wand, and it isn't. You can't do stuff that would make you saturate a stand alone string vest in sweat and then expect a coat to be able to cope with that and magically fix it. Likewise, if you are holding your arms up taking photos, using walking poles, using your weapon or whatnot, water can migrate down the sleeves. It's amazing that one has to point that out to people, but often one does. They blame the
Gore membrane but the fact is they are either using the right jacket inappropriately or simply have the wrong garment. There are loads of Gore jackets for sailing that have neoprene skirts at the waist and cuffs to stop that kind of ingress, [rather like snow skirts on ski jackets]. Then there is just plain filth cludging up the membrane. If you stay on top of that there is no reason for the membrane to struggle.
By far the most common thing I've seen is simply the wetting out of the fabric. Once the DWR is overcome and the water doesn't bead up on the jacket you suffocate it with a slick film of water. Essentially, you've taken your £500 jacket and temporarily turned it into a good old boil in the bag non-breathable oilskin of yesteryear. Of course, then people complain that it leaks.
Whilst I recognise that deficiency of all breathable fabrics lets consider exactly what that means. At it's weakest point, because it is being suffocated, the breathable fabric can only behave like a non-breathable fabric. Even here, where it can rain enough to make up a Noah story up on the moors over the course of a week, that is very unlikely to be the constant state the jacket is in. Those points are more like a series of daily nadir punctuations. Of course in your non-breathable garment there are no such nadirs. You start at the bottom of the bucket and there you stay. The weather eases off to a mild persistent drizzle that your
Gore would shrug off and still breath happily, and your still fermenting in your own juice like a discarded cling-filmed sandwich. Stick a wool jumper under that and you're only an accident of birth away from being a wingless walking bipedal yeast infection.
I do have a non-beathable garment I still use rather a lot, and I don't anticipate parting with it 'cos it has a perfect niche. Essentially, it is a poncho with arms made from 4oz yd² rubberised nylon. It's exactly the same material material used in the better issued garments at activity courses. It's 3* the price of the standard 2oz yd² PU jackets and trousers a lot of those venues provide, but is way better as a waterproof and lives a lot longer. It's still dirt cheap. I often use it with the tredder. I don't cycle in it, I use softshells or eVent for that. I use it when the weather makes it hard to knock up a Camberwell Carrot kneel down and use myself as a tent frame and build the brute inside, wind free and dry. That said, you don't want to be in it for long 'cos the condensation builds up. Being static in that garment [bearing in mind it is a poncho with arms so open and baggy], can over the course of a couple of hours really remind you of how grim the bad old days were. And that's just sitting there burning a sugar cube of energy an hour. I wince at the thought of trousers encapsulating your clutter in it, and carrying load up hill on a mild day.
3 routes spring to mind to me if you want waterpoof and tough, and I've tried 2.5 of them. Weight and bulk is going to be unpleasant, but something has to give.
1] On the cheap. Austrian military surplus. They've got three membrane jackets with tough outers. One is like a synthetic M65 jacket with a liner. Pretty darn tough compared to high street Gore Tex. I don't know how good the M65 one is but the one with the huge fixed hood and the Alpine one I've had and they were great for thrashing through the woods beating pheasant. Not ideal, but a tough cheap beater in olive green.
2] What I progressed to after the above for that same type of thing was Harkila. I don't do that stuff now so the bulk and weight is not for me. For shooting, bird watching, bit of trout fishing, brilliant. If I were doing that stuff now the Harkila Pro Hunter X would be the one at the top of my stack. It looks even better than the one I had, so I think it would take a lot to dislodge me from that. I strongly urge you to look up as much as you can about that.
3] Paramo would be my my choice if I were to go membrane free. I've mentioned here before that I used to get invited to the Paramo facility every year to see what they were up to. Their stuff is good kit. Of special note is one of the jackets they had pinned up to a board with thumbtacks riddled through it like a map of Leeds mosques. Take it down and it still didn't leak. Paramo has a really strong fan base here, and deservedly do. About the only thing it ever gets got at for is bulk and weight, and that is very fair. That's why I'm using eVent now [along with Montane, Buffalo, and softshells]. True, is is possible to eventually overwhelm a Paramo garment with water, although that never happened to me. So it's not going to be like Gore Tex that is so darn waterproof they now make waders from it, but it's bloody good. For a rough gist; consider everything good you've ever heard about Ventile clothing for toughness, and add Nikwax and steroids and you're on the right track.
My money would be on the Harkila Pro Hunter X
http://harkila.com/products/jackets/pro-hunter-x-jacket