Here is a link to the Pilot Charts http://pollux.nss.nima.mil/pubs/pubs_j_apc_list.html
Download the Pacific ones.
Look at the winds and current
and try to keep both behind the beam. Then just plot islands that interest you (and a few that sound romantic!).
First stop for most would be Hawaii
. I think there you will find many cruisers about to make passages and their routes may give you inspiration.
have to have your route set out before you go! Just your next leg
Its your trip, so you decide
Jimmy Cornells book (and others) will just tell you HIS trip!