Breeding with the first Ditto, you have a 9.3750% chance per egg to hatch a 4-IV Froakie.
Breeding with the second Ditto, that chance is reduced (slightly) to 8.3822% per egg. So no, you're better off breeding with the first Ditto.
This calculator should tell you everything you need to know.
thank you so much! that is literally exactly what i have been looking for hahaha