One of the joys of leaving the WTS is being able to believe what one chooses to believe. Farkel, I have had personal experiences in my life that convince me that Jesus is real, and that simply closes the issue for me.
One of the great things about living where we do is to have the freedom of choice, the freedom to choose what we want to believe in.
I am suprised that with all the same experiences that we have all had in the WTS, why some seem to have to ridicule others because they believe something that they don't? Just because one person believes one way or another doesn't mean that we have to try to slam them in order to make ourselves look or feel better.
Spanner: Up to your old tricks of Christian baiting, huh? You know that that's a form of trolling? Just because it's not JW to ex-JW, doesn't mean it's a different concept. It's also known as sh*t stirring.
I like the words ascribed to Pontius Pilate, on this one: "What is truth?"
Other than that, if it is a Christian response you require, then you'll want to heed Kes' quotation of John 14:6. That isn't a belief system, it's an individual.
As for your original question "O.K., Who Is CONVINCED That They Have The REAL Truth?" I'm not going to answer you with my opinion, because I know how you'd love me to do that. Is that the truth, or not?
We are always hearing of people who are around seeking after the Truth. I have never seen a (permanent) specimen. I think he has never lived. But I have seen several entirely sincere people who thought they were (permanent) Seekers after the Truth. They sought diligently, persistently, carefully, cautiously, profoundly, with perfect honesty and nicely adjusted judgment- until they believed that without doubt or question they had found the Truth. That was the end of the search. The man spent the rest of his hunting up shingles wherewith to protect his Truth from the weather.
Dam Strights! but beings as I spent nye on to seven years getting my head crammed with science, I reserve the right to denounce my present beliefs should a better explanation come my way! Until then, EUREKA! I've found it!