We have a thread on medals that give us the average number of medals to get to a certain star level, but has anyone measured the benefit of stars? It seems to me the medals guide is part one. The next step should be to get an idea of how much actual benefit you receive for those medals.

For example, upgrading Pompey from 7 to 8 stars gives 16 Command and that translates to 151 extra physical atk and 106 physical defense (for me anyways). Similar amounts for the other stats. Testing attack damage also indicates the stars don't give any hidden damage benefits. Pretty paltry, but every bit counts, i guess.