The game's mechanics seem to imply that heroes' stats ought to have numeric ratings, but there doesn't seem to be any mechanism for determining what those ratings are. Based on how it's laid out, I suspect a paragraph might have run off the end of a column somewhere.
Thanks for the feedback and for downloading my game! The heroes' stats are meant to be based on your stats, but divided by two and rounded down. So where you might have 15/13/10 or more, they have 7/6/5 in the order next to their name. I'm still working on my layout skills, so I'll make sure to redo that in a GatG 2.0.