The isometric view was the best angle I can think of, without any other visual aid. If you took a look at the FAQ you could understand why: You can calculate the value of the other side in isometric view.
I am not saying you are wrong. I completely understand your situation. I hope you on the other hand understand that visual aids and UX improvements are the lower priority in Game Jams. We should have added it if we have extra time!
Anyways, thanks for your suggestion, we will look into other similar games to find better ways to represent this. Have a nice day :)