I just booked from LAX (for FOUR!!) and was amazed when I found 4 biz on Singapore (LAX - NRT) and 4 biz on JAL (HND - LAX). I used my AA miles for the Japan flights (60k per person) and combined AMEX, Citi TY and Chase points for Singapore. Don't make the mistake I made though and make sure you give yourself enough time to transfer. I unknowingly transferred SPG points to Singapore only to find out it takes 7-10 days for transfer. I then had to rush and use up additional miles from my Chase account to complete the booking. Now I have 25k sitting in my Singapore account after the SPG points finally clear... ah well.