As people said, Pokémon
I mean the game came out like a week before FF15 ands old probably at least double the amount.
Then toss in games that also sell well like Dragon Quest, Shin Megami Tensei, Persona, the FE/Shin Megami crossover was received well, Bravely Default.
But again, Pokémon sold more than double ff15 from what I've heard and was within a month of each other. (I heard something like Pokémon shipped 10 million and FF15 shipped 5 million. Assuming both had same sell through and with similar ratio's for Digital. I would figure Pokémon would have higher digitals actually due to being a portable game. But in the end more than double should be a solid conservative estimate)
So to OP.
NO.
To the poll. Your poll is the only thing dead this gen.