This is a tough one...
Vikings have the edge at hand to hand combat, what with their axes and swords. However, cowboys are armed with firearms, giving them a greater reach. But the vikings have bows and arrows as well.
I’d have to give this one to the cowboys, unless they were in the viking’s home forests.
Mark
MarkL stays on the ping list. Congratulations, Mark. That’s the right answer. LOL!
Cowboys ride horses, which upset the Animal Rights Wackos. Vikings use a lot of wood from the forests to make their ships and bows and arrows which upsets the Environmental Wackos.
But I give the edge to the Cowboys because they still feed their horses, brush them, and give them new shoes when needed, while the Vikings just let all that wood rot and sink in the ocean and use the bows and arrows for killing.
That match can be arranged in Heroscape.