Thought id give Dual Iso HDR a shot.
Super quick test so i know for sure more detail can be pulled and more noise can be cleaned up.
Setup:
ML Auto Bracket - 9 Shots (did this to cover everything just incase)
1ev
Dual Iso
HDR Efex Pro 2 - Balanced
Photoshop CC - Camera Raw Filter to bring down the greens, ad slight sharpen,
100% No noise reduction at all,
Originals are at bottom of image

Crap shot and comp but wanted to test before producing finals.
I use to find that clouds and shadows areas produced alot of noise... now with dual iso that is almost 100% gone!!
(Image is slightly blurry as i shot at 2.8, sorry about that)
EDIT by SDX: Come on guys, 900px width rule!