What a coincidence DnC, my best kill ratio was achieved in my German game too

It was against the Polish though, so it wasn't anything to be proud of. It was a medmod game, and I had 2 +1v knechtes including a 2 star knechte gen, 7 archer units, 3 heerban, 3 spears and one woodsmen. The Polish attacking force had lots of spearmen and woodsmen, along with one or two polish retainers. I modded woodsmen to carry a small sheild and increased their charge to 4, though, so it was a bit tougher than normal medmod.

I positioned my archers on a very steep mountain, with spears protecting their front and knechtes, heerban, and woodsmen on the flanks. I had the archers hold fire until the polish were at the foot of the mountain. When I pressed A and my archers launched arrow after arrow at the polish...it was pretty funny to watch units melt away

A lucky shot killed their gen, and it was all downhill (literally, since they were charging upslope) for them afterwards. I countercharged, and they all routed. Result: 798 polish dead (executed all prisoners), 5 germans killed (including 2 archers killed by friendly fire).