[PvK]

My thinking (and my interpretation of my experience) is nearly the opposite from HotNifeThruButr's suggested good troops against Jotun giants.

Giants with giant weapons tend to kill human-sized targets when they hit them. Even men in Ulmish armor with shields. Even mounted knights and heroes with several typical magic items. Once they get hit, they tend to die. Armor can actually be a disadvantage, because it reduces defense, making it more likely to get hit and killed.

Also, heavy armor is expensive in resources. You're wasting a lot of build time (resources) by sending it to get squashed by giants. Giants like armored targets, since they are easier to hit, not much harder to kill with one hit, and are crunchy. Meanwhile, they are more valuable for use against many other types, and take a long time to build, so they shouldn't be used, or at least, not overly used.

Better to use troops with higher defense and as little cost and utility to you in other situations, as possible. Ideal would be something like masses of Hoburg Acrobats, jumping around yelling, "Hahoo! Hahoo! Can't hit me!" They will get hit anyway, but the point is to tire them out and keep them away from the units that are attacking the giants (ranged, mages, and/or a light mix of some well-armed melee units)

I found Tribals (8 gold, 2 resources) worked well. Yes they died a lot, but I didn't really want them alive and on the payroll anyway. I wanted them to keep the Jotuns busy long enough for others to kill them.

PvK