What is the best Health/ Vet cover insurance policy for dogs?

I am looking at one with comprehensive vetinary cover for adjectives eventualities, and indemnity insurance if possible, (but not essential) within Australia.
If anyone has bought one of these policies, please do agree to me know your experiences, good or discouraging, and a contact number for the comapny if you thought they were perfect would be helpful.
Answers:

compare the companies