Which highly touted RB will finish their career with more rushing yards for the Gophers? Obviously one has to take into account whether either will be here a full four years, whether they'll be in a deep backfield which will split carries, etc.
Assuming Jones makes it into school and has 4 years eligibility, he is more likely to lead in rushing yardage. Jones is (on paper) more of a traditional feature back - 20+ carries a game. From all accounts, Edwards is a change-of-pace back. In Kill's system, I could see Edwards moving from RB to wingback, or even splitting out as a receiver.
Edwards could well have a higher per-carry average, but Jones is more likely to lead in total yards.
Of course, eligibility, injuries and other factors that none of us can predict could have an impact.
And - given that this is Gopher Hole - in a year or 2, Kill will recruit another RB, and everybody will get all excited and proclaim him as the "next big thing." And the cycle starts all over again.
In Kill's system, I could see Edwards moving from RB to wingback, or even splitting out as a receiver.