I think she would definitely lose to any kazekage since all shes gonna be doing is hitting sand the whole time, gaara's dad is underrated since he was killed by oro even tho it took oro, sasori, and i believe kimmimaru(not sure) to kill him. I would still say she is a better kage than the fourth kazekage and probably gaara too but they dont match up well in 1v1
She's more useful as a kage than most of the other kages imo but that doesnt mean she would be good in 1v1 fights against almost any of them
For example
Raikages are too fast
Kazekages have sand
Hokages are just beast (she might be able to beat the second)
Tsuchikages have dust release and can fly
Mizukages: mei has lava and acid mist so you cant really regenerate from those, 4th maybe would be beaten but we dont really know if he had jutsus that can do a complete one shot like dust release, lava, dimension stuff, etc
Tsunade is just too slow and is limited to mostly close quaters combat to land attacks on almost any of them