Live weather is the only weather for me, and when it's broken (like Drunk Thor), I just play something else.In my experience, live weather provides much more diverse and natural weather conditions (and much more beautiful cloud formations) than hopping between the predefined weather templates. Plus it provides a welcome (for me of course) dose of unpredictability.
I've seen a bit of everything, from low fog with light rain in Egypt (there goes the city of the dead sightseeing tour...), to heavy storms in japan (was even denied VFR landing!), heavy haze and mist, sunshine after light rain with rainbows, huge thunderstorms, huge agglomerations of low clouds around mountains in oceanic islands, obscuring mountain slopes and the islands below, snow blizzads in Kamchatka, etc.
It's one of my favorite features, IMO it adds a whole other layer to the flight gameplay.