much will depend on how long you want to take,and avoiding typhoon season.
also wether to go via philipines,or cut south and go via torres straits.
in mid april and heading for kanton atoll,tuvalu,vanuatu,torres straits,singapore,phuket keeps you out of pirate and typhoon prone areas arriving phuket around august.will give good strong NE trades,then SE-E trades most of the way.
leaving hawaii in december and passing through the philipines by april should also keep you relatively free of typhoons,and good NE trades most of the way,though there has been a few cases recently of pirate activity off the bottom end of palawan,s china
sea and east side of singapore