I've been thinking about this color spread, if you ignore Zoro, Bepo, Killer, Sabo, and maybe even Rayleigh and only focus on the order of the YC1. It seems like Oda may have listed them from strongest to weakest, so basically Ben Beckman>King>Katakuri>Marco>Shiryu.
I know some people especially some Katakuri and Marco fans won't agree to this but that's how I see it, I mean it can't be a coincidence that Beckman who is considered by many to be the strongest YC1 is listed first and Shiryu who is considered to be the weakest is listed last.