Help leaky tranny

With a spot that size after an hour I would have to suspect a front seal.
Either that or it is overfilled and pushing out the vent.

The vent on these tranny's is on the front of the pump behind the converter, so either one would come out of the bellhousing.

A cracked converter nose is a possibility also.

Do you see drips of fluid on the bottom of the bellhousing when everything else is dry?