I saw him as close to Bijan.
I thought he'd be better running between the tackles than James Cook. Except I was wrong in thinking that he was 20lbs heavier than James. Their combine weight was exactly same and Cook has proven that he can not only run inside but appears to be strong enuf to move the pile a bit and/or earn the extra yard after contact. And as expected they both run well off tackle and can beat you to the edge and downfield with speed once they turn the corner. Agree Gibbs is a good receiving back but I see that as a strength of Cook's game.
They look pretty similar to me.