All the Mecha/Robot games I've beaten and ranked so far. Including games like Xenosaga since it does let you pilot a mech in the gameplay. And Trails of Cold Steel. EDF included since you could pilot a mech. None of the lower ranks are bad at all.

List for Mecha I haven't played Mecha Backlog <-
Interested in upcoming Mecha to watch out for? I got yall covered Mecha Watchlist