Naruto wins this
--He creates over 10 KB and outnumbers and outclasses the two kages here regardless of their FTG,,, furthermore he also has more than enough speed to attack the FTG duo,, with comparable reflexes as well
--Naruto can also fire several rasengan barrages/FRS/COFRS through his KB which altogether would have an AOE large enough to bypass the limits of FTG
--Naruto can also use his summons such as gama trio and Ma&Pa to effeectively attack Minato/Tobirama,, as frog call can also be used to momentarily immobilise the duo,, whilst naruto can throw an FRS at any of the kage
--with speed not far off from the FTG duo as well as naruto having siimilar reflexes,, more KB and chakra arms,, Naruto even has the advantage in CQC,,
--naruto can also merge SM with KCM,, and with the ampliifcation of SM his offense/speed/reflexes and durability are increased,, as he would vastly outclass the 2 hokages once he enters this mode
--he can also use his many KB as good diversions whilst naruto manages to prep frog song which can give him the win,,