Love the both, Matt, but I see your conundrum.
In the first, the sky is slightly more pronounced and, compositionally, more pleasing.
The second has a much better sweep of river (as pointed out), but that snow-covered rock (?) to the left, which is at the left edge in photo 1 (and less intrusive), sticks out too much.
What about combining the best elements of the two? Or, use #2 and if you don’t like that snowy bulge on the left, clone it out. I like that line of trees along the far shore.