Pein wins this high diff
-SM makes literally no difference at all,, since it takes minato too long to knead the chakra,,,and he had never used it in real battle
-With full knowledge,, Deva can use ST to repel all the kunai away thus hindering the use of FTG for Minato,, and making it difficult for Minato to use his FTG to the full potential,,,,
-With Pein having full intel,,, he would know to keep the distance against Minato,, and to do so he will use multiple summons and shurado missiles to keep on putting minato on the defensive,,,,,
-On top of that with these multiiple offense,,,they are likely to cover the AOE that Minato sets up with his kunai,,,furthermore ST hhas been undetectable by the best of the best sensors, in the manga,, and the attack is near instant,,,so Minato closing the distance is also not very suitable since he is bound to get hit by ST,,,
-Minatos summons are also overwhelmed through jus one boss sized ST,, like it did in canon ,, or through cerebru,, chameleon,, and bird,,, the bird will also give the peins the advantage of flight which will help them keep the distance from Minato,,,
-Minato has no counters to CT,,, since it covers the AOE of his FTG here,, due to him having no prep time,, and the orb not being a projectile,,, nullifies his S/T barriier,,,,, which also ends the match for him,,,