I'd love to see a feature in Equilab's "Scenario Analyser" that would allow me to plug in a range for both myself and for villain and visualize how the ranges play against each other. I don't really understand why the current version only allows user to plug in one hand instead of a range. And as far as I know, that shouldn't be too hard to implement.
And since I know how slow the industry standard for software development is, does anyone know any tool that would already have such feature?