Any question answered...

Are swissstop green still the pad of choice for alloy rims?

I was really disappointed with my last set tbh, back to back on the same bike with Zipps/Black Prince pads vs Nemesis/SS-Green and the Green's felt almost dangerously poor.

This was out in Colorado - so big stops into hairpins in the Rockies.

Are swissstop green still the pad of choice for alloy rims?

The green are designed to ensure longevity, but at a cost of wearing out the rims quicker due to the harder wearing rubber.

Swissstop BXP (blue) is what you're looking for if you want something that comparable to Koolstop Salmon in term of performance.

The BXP is pretty much the best you can go, last as long as standard Shimano pads, extremely powerful in both dry and wet, and almost as kind to the rims as the Koolstop Salmon.