I think the most compellint piece of evidence is the laws of conservation of mass/energy. If nothing can be created or destroyed then what keeps consciousness from being subject to this rule?
2. Near death experiences - I have never had one, but I heard testimony from a man that has been through it. It is very compelling and I don't know of an explanation other than afterlife.
3. Spirits. People see the dead all of the time. Is this coincidence? Are all of these people liars? Doubtful.
4. We can't really have evidence against an afterlife because everyone who has been to the threshold and returned said that there was something there.
I am not a human being on a temporary spiritual journey, I am a spiritual being on a temporary human journey.