Have a look at this site -
The global site for cruising sailors — Noonsite
As I too would like to embark on a sail to the Philippines, I've been doing a bit of research on best passages from
Australia.
A lot seems to suggest sailing around the
east coast of
Papua New Guinea (via New Britain Island, Bizmark Sea),
Palau, then the central islands of Philippines (Visaya).
This is to avoid possible pirates around
Indonesia.
I haven't finalised my inevitable
passage yet. Still a long way to go, but the above site has a lot of tips (including best port(s) in Philippines to get your arrival paperwork handled etc).
I hope that helps.