Then and now are different.
Then (not a complete list):
1. Prophecy - that Jesus was (had a strong claim to being) the heir to the throne of King David, King of Israel - this was the predicted lineage of the Messiah (sent by God).
2. The miracles- especially raising of the dead. This implied supernatural power.
3. The endorsement of John the Baptist - regarded as the holiest man alive.
4. The charisma, personal authority, intelligence and learning of Jesus himself.
5. His resurrection.
Now (again not a complete list):
1. Personal revelation/ being born again - an intuitive conviction.
2. Tradition, historical evidence (including historical evidence of the above five listed factors)
3. The (only) complex, complete and coherent theology/ philosophy.
4. The societal fruits of Christianity, the socio-political consequences of the faith; or, negatively, what has happened when Christianity has been abandoned - the fruits of apostasy.
5. The psychological fruits of Christianity - the personal consequences of the 'experiment' of Christian belief and living (or, negatively, the personal results of abandoning faith, Christian morals etc).
So the situation, the evidence, then versus now differs almost completely.
But the basic human condition remains: Christianity is a choice.
There is substantial evidence in favour, but the positive evidence all has deficiencies and limitations, and can always all be subjected to critique and questions; and there is also evidence against - therefore, as always, the situation is not conclusive or compelling in either direction.
Then and now, a choice must be made, a commitment is required.