#3 for me, love that kind of light and your processing has really shown it off.
One thing concerns me with the last one - there is a strong 'glowing edges' effect along the tops of the ridgeline and into the tree tops on the LHS of frame. It doesn't really seem to match the lighting of the scene IMO - with the tips of the mountains being darker than the sides and lower surrounding plains, and the brighter light above, my eyes expect lower constrast in that area as that's where the rain would be rolling over and softening everything off. It might just be a difference of approach to the editing/presentation but it makes the shot feel "edited" to me. Not meaning to be rude, I'm not great at descriptions in critique!