I don't care what Bart Scott says. That's a personal preference, and he is entitled to his just like anyone else. But as for the stats your are using - actually misusing and misrepresenting - that's something else.
So, let's take a look at the "what have you done for me lately" stats you talked about based on what you say is the more reliable ESPN rating system ...
Alex Smith played 10 games last year and had a QB rating of 53.8, and Dak's rating was 58.6. In 2017, Smith's career best year, he had a 67 rating, which is still behind Dak's 69.5 rating in 2017. In 2016, Smith had a 58.0 rating, and Dak had a 78.8 rating. So, for the last 3 straight years, Dak's QB rating has surpassed Smith's, yet here you are claiming Smith's QB rating is better.
You should look closer at the stats before making claims, because these just bit your argument in the butt.