Vikings vs. Mongols
I say Vikings would win because it is a Viking's ultimate goal to die in battle. A Viking who dies of old age is foreverafter known as a coward, & his soul is condemned to Niflheim (not a nice place to be).
I think the Vikings would win in a fight with the Mongols because the most dangerous enemy is one with nothing to lose, & the Vikings don't care whether they die or live, so long as they die in a battle EVENTUALLY. In other words, the tactics of someone who isn't the slightest bit afraid of dying are going to be extremely hard to compete with, & for that reason the Vikings would win.
Also I am not biased at all ;)
I am interested in what other people think.
Btw, I started this thread cuz my friend & I were discussing this earlier today.