The light in the second version is better due to the sunlight on the right side foreground mountains and the snow field behind them, also the clouds opened up to reveal more of Mt Assiniboine(?). Though I prefer the framing of the first because it reveals the lake on the lower right side but the lower left side snow is distracting. Perhaps combine the best elements of each?
Following your suggestion I tried to use the frame with the better sunlit mountains (from photo #2) and add it to the stack for the other pano (#1) but it has not worked.
Taking out the "disturbing" snow cannot be done without massive digital manipulations and that is not my style.
I appreciate the point of view, others feel the same - and I do too, but I have to choose between two things, neither of which is perfect.
The upshot of all this is that re-working the pano I have discovered and corrected a serious issue.
There was an area of blur due to an unsharp image. I was surprised of this unsharpness, since it was shot at 1/250s on a tripod. But on the other hand there were strong gusts of wind, or maybe I inadvertently stumbled on the tripod legs.
Who knows, fortunately that frame could be removed because the two adjacent ones were still overlapping a little.