I would rank Favors as the 4th best PF going forward. Only PF that are more valuable/better are Anthony Davis, Lamarcus Aldridge and Blake Griffin. Duncan and Nowitzki might still be better but definitely not more valuable.
Also Favors has always been a PF in this league. Jazz were forced to play him at center for awhile because they didnt have a better center option until Gobert. It wasnt an experiment to try him at PF, that is his natural position. Maybe it was an experiment to see how him and Gobert play together, just like its an experiment to see how all players in different combinations play together. This experiment went great. They are a dominant duo. They had a few kinks on offense mostly due to the lack of offense from Gobert but both player are improving there. Also now that Favors is being switched to PF he is going to slim up a bit and work on his PF skills more. He is going to be greatly improved for next season, as he is every year.
Also Favors has always been a PF in this league. Jazz were forced to play him at center for awhile because they didnt have a better center option until Gobert. It wasnt an experiment to try him at PF, that is his natural position. Maybe it was an experiment to see how him and Gobert play together, just like its an experiment to see how all players in different combinations play together. This experiment went great. They are a dominant duo. They had a few kinks on offense mostly due to the lack of offense from Gobert but both player are improving there. Also now that Favors is being switched to PF he is going to slim up a bit and work on his PF skills more. He is going to be greatly improved for next season, as he is every year.