I seem to have both guns at my house but I think they are pretty even, I just want to know if one of them are better the other one
........Two different cartridges designed for two different applications. Cannot say that one is better than the other unless you define the purpose for their use. They are not comparable and cannot be compared to one another.
For short range use in heavier cover the 45-70 gets more of the the nod, though the 375 Ruger Hawkeye will still work for that just fine.
However, the 375 Ruger Hawkeye can do what the 45-70 cannot do! It`s a flatter long range shooter. Quoting Jeff Quinn,,,"With the right bullet, the .375 Ruger shoots as flat as a 270 Win, flatter than the `06, and hits much harder than both when it gets there."
Your use of either would depend on your hunting circumstances.