I love two weapon variant, probably because there is no right answer. Each class has a very different interaction with multiple attacks per turn. I like this apprach as a solution to freeing up a bonus action, as well as how it adda verisimilitude with the theme of "parrying dagger", which is something many rpgs overlook.
I also commend the post itself. It is thourough, yet readable. The way you let us in on your thought process is most enjoyable. :)