B&W Filter: Which One Generally

[canturn]

and by the way, I am also not for the idea of stick a filter in front of the lens just hoping the photos will turn out nicer.

Imagine I'm using say tri-x and rate it at 200 since I want to pull process it due to a too contrasty scene, I stick on a orange filter, I lose 1.5 stops( approximate), that means I'm working on iso 50. imagine if I start off with a slower iso emulsion!

If you want very dramatic skies, u can't run away from filters. U could use Grad red filter to achieve the kind of dark skies tho, or even better, grad red + polariser.

Personal taste, I for one like really dark skies, close to the zone 3 type of grey... pardon my choice of word, falling asleep here, hehe.