As someone that assists with the design of this stuff, and also uses it regularly for a very demanding profession; I'll throw in my tuppence.
Goretex Pro shell, particularly the newer stuff (last 12-24 months with high flying brands such as Arcteryx, more recent for others) with a slightly lower Denier than previous model is exceptional stuff. It's the most breathable fabric that Gore make now, (even more so than Active due to the newer, tougher low denier face fabrics that assist with this breathability), and is monstrously tough. A few that spring to mind are the Arcteryx Alpha FL, or if you want the mother of all fortresses using the slightly older, but impenetrable fabric; the Alpha SV.
I seem biased towards Arcteryx, for the simple reason that I am. They have taken Gore's fabric and run with it, and really totally run away with it. Their R&D work pushes Gore for new fabric developments, that, with time; filter through to the rest of the market. If I was buying Goretex, they are the only ones I would consider…Full stop!
However, there are alternatives…
Whilst something such as Paramo has received very mixed reviews, and people either love it or hate it, I personally find it exceptional. I have never found it's waterproof level wanting, and it's comfort and durability are superb. Even though the face fabric is very light, and low denier, it has proven to be very durable, and not nearly as fragile as one would expect. The biggest plus, is that due to the nature of its construction and design, any holes, snags, rips or tears can be fixed with a needle and thread; without any noticeable hindrance to the waterproof level. I have had one such rip at the hands of some razor wire, which would slice through any presented fabric, but a half hour repair (in the field I might add) saw it watertight again.
Something to consider…
Cheers,
Jamie.