Mine would've been RWLE, but after playing around with Nevada Skies, I would have to pick Nevada Skies. Not only does it have a TON of weathers, it also allows you pick them at any time you want. Not only that, the ENBs it has under it's belt are really good in my opinion. Nevada ENB still looks fantastic and the Nevda Skies version of Tru3th's Wanderer ENB looks great. An honorable mention would be Hitman's weather. It looks fantastic and has zero performance loss when it rains. Also, for any ENB creators, what is your favorite weather to use for your ENBs and why?

I use Nevada Skies most

Normally i use Nevada Skies but with TTW it deletes the citadel and that's game breaking. Nevada Skies is the main mod for enbs, too, so most people will use it (i only can think of blackout that's not really using it)

I personally use Nevada Skies and Realistic Wasteland Lighting. What irritates me in Nevada Skies is the fact that any change in the weather destroy FPS, after all it is a good mod to change the weather.

first i used Nevada Skies but switched to Realistic Wasteland Lighting - for me RWL has a more realistic tone (coincidence?) not as colorfull as Nevada skies. I found a sweet fx for RWL which makes it even better and a RWL addition mod which adds winter and many more weather effects to the original RWL. So until i figure out how to install an ENB without killing my machine i'll stick with RWL

I used to use Nevada Skies, however I had to switch to FNV Realistic Wasteland Lightning, because my ENB only supports that weather mod.Although that FNV Realistic Wasteland Lightning does provide a decent visual improvement, it does not change existing weather system, and doesn't have any new weather effects like new clouds, rains, sandstorms, toxic storms, etc.

Nevada skies, RWL is good as well, but it doesn't have enough variety.