Frankly: I don't employ statistics at all. Like all things, they should be tackled as a narrative and not on a calculative measure. These systems are useful in video-games or even in a board-game setting. But where people are writing as part of a story then a lot of things can be too ambiguous to define in a traditional or non-traditional stat-based system. And constraining story-telling to be defined by a strict set up numbers really chokes the organic nature of a story. And in styles where it's assumed that quantified numbers like unit-numbers denies any sort of twist where people with the 2:1, 3:1, or higher can win almost guaranteed against a smaller force.

[url=https://en.wikipedia.org/wiki/Battle_of_Plataea]And in reality[/url]

[url=https://en.wikipedia.org/wiki/Battle_of_Salamis]this sort of shit[/url]

[url=https://en.wikipedia.org/wiki/Operation_Eagle_Claw]through the ages[/url]

This of course requires a decent amount of planning beforehand between the relevant parties and knowing where one-another stands. But operating on stats I feels encourages an unrealistic amount of aggression since it assigns numerical values to certain successful qualities and this can lead to dick-waving and out-of-character operation to balance one against the other. And that sort of bitch-festing isn't fun.