Lanefan
Victoria Rules
In many cases it's fairly obvious.But again, who is to decide what the monster's 'best hand' is?
In those where it isn't, that's where the DM has to put on a thinking cap. And maybe she guesses wrong; whatever "best hand" she comes up with plays right into whatever tactics the players/PCs come up with during the session. Them's the breaks.
By sheer coincidence I was just reading up on the battle of Waterloo the other day, and that's one instance where - going in - the forces were fairly even. The thing that tipped the balance against Napoleon was the to-him unexpected arrival of a third army (the Prussians) who he had expected his own outlier army to deal with or at least hold at bay.VERY RARE in history is the time when equally prepared and resourceful opponents engage in conflict. Usually one side or the other simply has some decisive material advantage the other cannot counter.
Otherwise it's quite possible Napoleon could have won that thing.