Siddle on Tuesday joined captain Michael Clarke in declaring the Australian pacers are better than South African trio of Dale Steyn, MornÃ© Morkel and Vernon Philander.
Johnson finished with 37 wickets for the series at an average of 13.97, while Harris took 22 wickets at an average of 19.31 and Siddle 16 at an average of 24.12, Sport24 reports.
Australia climbed to third on the International Cricket Council world rankings, behind South Africa and India, after a 281-run defeat of England in Sydney.
Siddle said the challenge now was to prove it when they tour South Africa in February and March, and added that Australian attack is best and has proved it through their consistent we've performance against England throughout the Ashes series.
The Proteas host Australia in three Tests and three T20s starting next month, Sport24 reports.
--ANI (Posted on 08-01-2014)