First let’s check their stats
as we can see tobirama can use 5 nature type + Yin & Yang release and minato – 3 nature type + Yin & Yang release.
Ninjutsu- I think tobirama has advantage here, as databook states he can use more nature types, also he is one of the most dangerous water style user.
Fuinjutsu Minato learned several fuinjutsu from Jiraiya and Kushina. Minato was also able to incorporate his Flying Thunder God seal into both Kushina’s and Naruto’s seals which allowed him to be able to instantly teleport to their aid. with 8 tigrams sealing style, minato sealed kurama’s Yang-half into naruto. this seal Does not even need physical contact . Death reaper seal -Once the target’s soul is grasped, the summoner can remove the target’s soul and seal it into their own body. I think minato is better in fuinjutsu.
speed- that page of manga is enough for me to think that minato is faster than tobirama. also his NTS(nerve transmition speed) is bit faster.
intelligence- having the highest scores in the history of the Academy, Even at a young age. tobirama also shows his high level in intelligence, but with feats minato is better.
Taijutsu- i think it’s draw here. in 3rd shinobi war everyone was feared by minato , he could even beat thousands of shinobi with only taijutsu, but that’s nothing for kage level.
Chakra- in base of course tobirama is better cause he is senju. but if we are talking about sage mode or kyubi mode tobi loses here too. senjutsu can make minato better sensor than tobirama also his physical attacks and techniques have more dmg. in kurama mode his speed, power, sensor abillitys, also are growing and with that tobirama is in big disadvantage.
with facts and feats in this battle Minato wins Easily.