I have had some discussion about this at a few meetings/workshops, and have had a role in defining some RESTful APIs and JSON data container specifications. I was a little surprised by the extremely unscientific poll that garnered 22 votes (interestingly it will not let you vote on your own poll). I worry for the people voting for a mixture of the above, and hope they were just trying to wind me up :-)
Languages Using JSON
What Shoud You Use?
At the end of the day it doesn’t matter too much so long as you are consistent, and don’t use spaces as that can cause all sorts of headaches. I need to go and fix some things I did where we used spaces…