sternth bandits have higher base damage, which allows them to do more stable damage, which also allows them to master savage blow first....on the other hand luk bandits have to master dagger mastery before they master savage blow, because of their unstable damage
disadvantages of strenth bandits:
they cannot use Lucky seven, therefore they are harder to train
disadvantage of luk bandits:
they have to master dagger mastery first and their daggers are way more expansive
advantages of strenth bandit:
daggers cost less, because there are less str bandits
advantage of luk bandit
they're are a slight bit stronger than strenth bandits in the end
finally: the final decision of being a strenth or luk bandit is totally up to you