UGA has five victories vs CFP final Top-25 (2xTexas), the best by far. ND has 2, which is respectable as much as anyone besides Oregon and Ohio State, who both have 3. Penn State has 2 (10,20). Tennessee and Clemson have 1. SMU & Indiana have 0.
In Strength of Record rankings, which ranks who you beat not who you played, ND is 3rd behind Oregon and Georgia.
They definitely have a stronger resume, the strongest even. But UGA has looked as vulnerable this year as they have this decade. We'll see how Wednesday goes.