I have to go with FE:A, though I wasn't aware they were so close in retail sales.
I think, as a general rule, handhelds tend to have higher digital sales, so Fire Emblem has that in its favor. And like Dengle said, there were some notable supply issue when FE13 was released over here, so that would add to the digital ratio.
Though of course, it could go either way.

NNID: Zephyr25 / PSN: Zephyr--25 / Switch: SW-4450-3680-7334







