Well, for my part I tried Pandoc and it wasn't compatible with either computer I had access to. Unfortunately, Word-to-Markdown doesn't seem to allow converting folders worth of docs at once. What metrics would you be comparing?

doesn't seem to allow converting folders worth of docs at once

In theory, you could write a shell script to loop through a folder and use the command line interface.

In theory, you could write a shell script to loop through a folder and use the command line interface.

In theory yes, but I don't know how - hence why I've spent the past couple days looking for a premade tool. It turns out there are a number of single-document converters, and one directory converter which I haven't managed to get working.