I use Fira too, currently, but IBM just won for me, with JetBrains as the runner up. I'm actually surprised by that, and learned a lot from this game(?).
I don't see a runner up, only the winner. Did they change the game? Playing on mobile, Android Firefox.
I hid the font names until I reached the final two. Decided which I liked better and then disabled the toggle to see the names.
Note that the second best font may not be the one in the final two, due to the single elimination format.