No one will ever argue that legacy is defined on championships. So vote goes with Saban.
I am just saying based on his sample at Michigan State, Saban does not perform to Cignetti's level following a very different path. Cignetti definitely paid a higher price to get to the promised land, and got there by turning a historical cellar dweller around. Something Saban never had to do during his tenure.
Saban was 34-24-1 at Michigan State. His final year there, he did have a 10-2 record finishing in the top 10. He was 23-16-1 in Big 10 play, going 0-3 in bowls. Respectable for sure...but nothing like Cignetti.