Last year Campbell shared his place with Breakfast presenter Hilary Barry who this year shifted in the trust polls from first equal to fourth place, pipped by Peter Williams and her former co-host Paul Henry.
Campbell earned an 18.4 per cent vote of confidence, followed by Williams on 9 per cent and Henry on 7.9 per cent.
With 24.7 per cent of the vote Key was the most trusted politician, and Labour leader Helen Clark came second on 15.3 per cent.
No current Labour leaders made the top three this year.
Third place went to NZ First Party leader Winston Peters with 8.4 per cent.
In sport, McCaw collected 26.4 per cent of the vote, Valerie Adams scored 10.5, and Lydia Ko was in third place with 6.7 per cent.
Jools and Lynda Topp were our most trusted entertainers, collecting 9.5 per cent of the vote in this category, which was won by Dai Henwood last year.
Singers Sole Mio came second and presenter Simon Barnett was third on 7.3 and 7 per cent of the vote respectively.
For the sixth consecutive year, Whittaker's has been voted most trusted of all brands surveyed.
The 120-year-old family business was also voted most iconic brand, and won the confectionery category accolade too.
The brand was seen as good quality and honest in its presentation by those surveyed.
Other top-listing brands were Canon, Tip Top, Edmonds, Resene, Air NZ, Mitre 10, Toyota and Sleepyhead.
Kiwibank was voted our most trusted bank.
A representative sample of 1400 New Zealanders were surveyed by Roy Morgan Research to reach the findings.
Respondents were selected to reflect the demographics of the general population and completed an on-line questionnaire.
This year marks the 18th time Reader's Digest has commissioned its annual survey.
