There is a 2014 study which looked into the fidelity of 6 commonly used polymerases. Here is the link: https://www.hindawi.com/journals/mbi/2014/287430/

Important line from the summary: "Based on minimizing PCR errors, Pfu polymerase, Pwo polymerase, and Phusion all produce acceptably low levels of mutations."

Phusion created more indel mutations than Pfu and Pwo so it should not be used if you are doing an ORF cloning project.

This 2017 study (https://academic.oup.com/nar/article/24/18/3546/2359477) found that Pfu DNA polymerase achieved the best fidelity.

However, in the 2014 study, they found that "Aside from fidelity considerations, amplification efficiency values were significantly higher for Phusion and Pwo compared to Pfu, although further optimization of the PCR reaction for Pfu would likely improve efficiency values."

So likely you will want to choose Pfu or Pwo depending on your experiment.