In reply to glenn0010:
With waterproofs it's sad but true: in general, the more you spend, the better they are.
That's because making something highly waterproof but still quite breathable AND strong is really, really, difficult. Jackets that compromise on one of those characteristics can be a lot cheaper but then would also need more consideration about when and how to use them.
Now, I'm not saying you have to run outside and spend 700 pounds on an Arc'teryx Alpha SV but there is a sweet spot between price, breathability and durability and with waterproofs that sweet spot tends to be north of 300 pounds.
Can't help you with the trail running jacket as that's not my cup of tea but for mountaineering I have used a Fjällräven Bergtagen Eco-Shell and Arc'teryx Alpha FL to full satisfaction. The former is more feature rich and heavier, the latter is very lightweight and bare bones but the material is bomber.
But to be honest, if you pick something from a reputable brand built from any 3L membrane you won't be disappointed. There are so many good options out there that it's more about what you like in terms of features and fit than in terms of brand or material. As long as it's 3L. Just remember to wash and reproof them regularly. That's more important with modern-day rain gear than it used to be.