[benjulmag]

My opinion, P & S Creighton...for one main reason. That is the only card of his, period. And one of only two known photographic images of any kind. The other candidates are all incredible examples. And, as a practical matter, they are all impossible to obtain. But cards of Anson and Kelly (factoring other poses/issues) are easy to obtain. In regard to Spalding, there are a multitude of other cards that depict him in a team context. And in the solo context, though harder, there are at least two known cabinets/Cdv's.