Who Will Win 2nd Highest Selling Fighter of the Gen, SF:V vs SSBU?

[Darwinianevolution]

If we only count WiiU-PS4, SFV wins by little, because of the difference of the installbase.
If we cont 3DS-PC, SSBB wins.
I don't know if Capcom will make new versions for SFV (that they will), and I don't know if they'll keep the exclusivity of those like Dead Rising 3or RE4.