have you checked Japan airline PEY? it has always been great hard product and with latest 350-1k PEY is far better than qF domestic J it appears. i never flown it myself but something to keep in mind if OW/*A choice is not too important and when they fly to more lOnghaul destination.

personally for flights of up to 8-9hr PEY is sufficient on my own money if value proposition is there vs busIness offering. so far never felt compelled to try SQ PEY for reassons already mentioned above, which is a flipside of their ssuperior Y product