If I'm a squire/knight, I prefere to wield an arming sword.
My viking wields a bastard sword, a balanced broadsword and two belts of throwing axes.
If I face a lot of shield wielding foes, I pick up my heavy fighting axe from the chest.
The bastard sword mainly serve as a hit and run weapon from the horse, due to it's length and weight.
Then I switch to the broad sword.
If someone escape me, or there's simply too many to fight with one single sword, I throw my axes.
Sometimes I throw axes from horse as well, if facing really tough foes, although there's nothing as satisfying as throwing one in the backof a peasant, hear them scream and crumble to the ground.