Our 4th day in Niseko was very windy, and it was a perfect ay to go to the nearby Rusutsu which was more sheltered and ran its top lifts all day while other nearby resorts had to close them (Niseko being very segmented that day).
Rusutsu is not a huge resort, but had plenty of off piste terrain, and interestingly had a few slopes across the street although we didn't have time to go reach them (they seemed there only to cater to people from the hotel, while serious skiiers like us were across the street in the higher peaks).
It wasn't deep powder that way, but still plenty of good snow:

such a 'high' peak, 994 meters :)

warning, 'less' snow... There was plenty for us...

warning 33% degree slope. OMG, so steep ;-)

slopes across the street, where we didn't go