I won't lie, my persona was a ninja for a while. I then realized that not only was it a bad fit for my fighting preference, but it was completely against the idea of the hidden operative. Having reached that conclusion, I evolved my character into more of a samurai that doesn't always play by the rules if it means winning against a superior foe.
I'm not a fanboy (far from it, anime fanboys and samurai-cultists aggravate me). I do find Japanese warfare intriguing, though. Also, a shield never really felt right in my hands, so I chose a persona that doesn't use one. Problem solved.