I feel like it could be useful to have one more end game stat, something like :
Damage tanked/dealt
This would be computed as damage dealt without multipliers or resistance.
For instance a spearman that deals 10 damage base (without multipliers) would be counted as 10 damage whatever the facing unit is.
The idea wouid be that someone that uses skirm against hand cav will not tank much damage, but it would be better if he uses skirm against musks.
As such, this would be a proxy to see how well you used the correct units against your opponent composition.