I have Photoshop Elements 14. I assume my question is just as applicable to Photoshop CC as well since it has similar ACR setting adjustments.
In ACR, there are 3 groups of setting adjustements. In order, from top to bottom in ACR, they are: group 1) White balance, Temperature, and Tint; group 2) Exposure, Contrast, Highlights, Shadows, Whites, and Blacks; group 3) Clarity, Vibrance, and Saturation.
I've heard and read many different opinions on this question (e.g., "Always do W/B first, then move to middle group 2 and work your way down from Exposure"; "The order of your tweaks in ACR makes absolutely no difference in the final image." etc.)
I'm fairly comfortable using the settings in group 1, and group 3. My primary issue is whether or not the sequence of use of group 2 settings matters at all? In other words, do I wind up with the exact same image in terms of quality, regardless of the order of tweaks?