Carl. Easy win
First of all he has a MOUTH with TEETH friend fredbear does not have TEETH
Nightmare cupcake has SHARP TEETH
there are around 12 cupcakes in total
Only two of them do not have teeth
However
None of them are lethal except for nightmare cupcake and probably Funtime cupcake
We can see that in the movie mr cupcake is lethal
According to MatPat’s theory on the movie
Carl is probably possessed
So there’s some bonus points
But on Fredbear’s end
He can easily go into ur dreams so that’s a good skill