i've been doing transpacific flights for decades.

When on business, need to make most efficient use of time, prefer evening flights, gets me in around 5-6 am and can be in office/meetings by 10 am.

When on vacation (which is seldom), then take the daytime flights with Mrs. that arrives early/late evening, then mid-night snack and lots of R&R.

This time of year, HK hands down. Much better weather and more exciting things to do - include a visit to Macau (just avoid weekends).