Just thought I'd stop by to see how this discussion is progressing.
Reflecting on "confirmation bias", I suppose one way to avoid it is to argue for a while from the opposite side. And that often does happen in any prolonged investigation. But in this case we already have a good share of such advocates for whatever reason. So I won't bother.
On the matter of evidence. I find rather awkward the silence of the competitors of the United States on this matter. Perhaps in the late 1960s they were oddly silent about Moon Landings in China or the Soviet Union, but I have met scientists and engineers from both countries, especially the former, who were engaged in the same activities, including the cosmonaut ( Aleksei Leonov) who was charged with performing the same task - and also one of the lead officials of the Soviet Space agency who gave his account of their own effort. Among these individuals, and especially during tours, they pointed out the hardware they were going to use, recounted their successes and failures. And they clearly acknowledged that the US lunar landing was real.
A few moments ago I was looking at surface pictures at the lunar landing sites
http://www.universetoday.com/113359/what-does-the-apollo-11-landing-site-look-like-today
I don't believe all the sources for the images are the same, because there are now several international missions taking photos of the moon. Sometimes at recent lunar and planetary sciences conferences you could watch the images in real time.
One of the most dramatic such images I have ever seen from space a spacecraft was a Mars Orbiter image of a Mars lander (Curiosity?) in mid flight descent toward landing at Gale Crater. Subsequently other Mars lander images were identified as well. You would think that the same thing could be done with the moon; and like surface explorations on Mars, beside the images of the lander stages, science packages and even flags, there are tracks on the lunar surface showing the paths of the lunar rovers in which the astronauts traversed subsequent landing sites.
Detailed accounts of the missions can be found in NASA special reports which have been collected by Apogee Books...
Though I suspect there are probably still some nation states that do not acknowledge that these events had ever occurred. Some just might not have much stake in the outcome either way. But maybe one might have some of their own know how, mythology and vested interest against - e.g., North Korea.