I would agree, black templar are very nice cavalry units, but are still cavalry and best used as such. A test of 20 black knights vs 40 guardians leaves equal casualties and routing knights. The templar can get a nice bless but I'd still keep them on the flanks as PvK advised. And against jotunheim I've found pikeneers the way to go. Nothing else is going to repel jotun spearsmen and extra armor or damage doesn't matter as much as changing who repels whom. Still not a good nation to fight with ulm though.
I've been growing much more fond of weapon reach. If I understand how it works you ignore about 25% of attacks from roughly equivalent units while forcing morale checks and you hit them back and possibly cause 1 damage another 25% of the time resulting in another morale check. It sure makes hoplites vs. milita a really unfair fight.
