Considering what we’ve heard about Brandon and how fans view Lyanna, Robb proved to be more Stark than Tully by marrying Jeyne. He clearly doesn’t follow Family, Duty, Honour
You mean except for the part where his entire life was dictated and define by his dynamic within his family, his father’s teachings of duty and his struggle with honor? I love that Robb is a Stark, don’t get me wrong. The imagery and the fierceness of the house/the North as a whole really lends a likable, exciting quality to his character. But Robb was always a summer child, his blood always ran of rivers more than snow. I think that’s the point of having Jon around, because Jon is so truly of the North and that dynamic of Jon not being the Stark in name, Robb inheriting the Stark title and responsibilities, while Jon was always really more of the North embodied. Just my personal opinion, but the juxtaposition of their different looks and personalities doesn’t really make sense otherwise. And everything George does is with a purpose.