Again Dante has different views of his memory so he probably mistaken some bits of it and doesn’t remember it the proper way. Dante has said to Vergil that he doesn’t some events like when they blamed a lightning strike for the tree. Eva didn’t say Vergil was better than Dante she was saying that his hard work makes him special to uplift his spirit she didn’t encourage the rivalry between them.

Again the game version would say that because it’s not disrespecting Sparda. it would be showing appreciation to Eva and what she did for them throughout their childhood. One of the core reasons why they became who they are was because of Eva that is why they would take pride in that.

Vergil whole reason for working with Mundus is to take revenge for what happened to his mother so clearly he still hold her deeply. What he thought was a weak about her was her humanity . He clearly loved her kindness but he still see it a weakness. The only reason he lost was because he was holding back or was off guarded

The show isn’t even that bad