Haven’t been, but the PH Niseko I’m sure is the best.
PH beaver creek is the worst PH in the system and at best a mid tier regency. The only saving grace is the service here, especially the ski valet.
Best non-hyatt ski hotels I’ve been to - St Regis Aspen (the only bonvoy property I continue to patronize) and Aman Jackson.
Aspen needs a PH!