I far prefer just plain waterproof, not breathable, with plenty of ventilation. IMHO, there is no such thing as both waterproof and breathable. My experience with a number of different types of WP/B stuff is that it doesnt breathe worth a darn and lets the rain in. My rain gear is made of silnylon, and it's both very lightweight and a lot cheaper than the so-called breathable stuff. The jacket is a size too large for me, which means there's more ventilation room. And if it's so warm that I sweat in it, I just leave the rain gear off and get wet. My clothing dries in 20 minutes when the rain stops.
Your mileage, of course, may vary.
Love the "glass rain gear"!