Originally posted by Elite Hunter
Until I see something about Malak's saber skills, I'd give Marek all 3.
According to the Complete Star Wars Encyclopedia, Marek "all but perfected the fine art of lightsaber combat and learned to wield many fearsome dark side powers."
Though the statement is vague in terms of the extent of Marek's mastery, it makes it abundantly clear that the apprentice was a skilled duelist indeed.