BloodRawEngine
Video Game Engine of War
Aside from the Lucifer of DI being a joke even compared to most of the not-Zeus Gods when regarding sheer feats, Dante never really kills him so much as he just puts up a decent fight until using the souls he gathered to absolve himself and seal him away. He also even failed to do that, judging by the ending.
Then there's the aspect of the actual characters' own showings, in which Dante can best be regarded as a low-tier Kratos in the regards of the actual manner their feats shown (as in, how they do it). Not counting Kratos' higher weapon and magic power count, damage-tanking feats, higher-end strength feats, superior showings from his enemies than Dante's, etc. The debate of Kratos' unholy status in the eyes of the Christian-based religious standards is rendered moot given what it takes for Dante to even work that in as a possibility; He'd most likely have to not only outfight Kratos, but also overpower him, neither of which he can do.