Your friends the Randalls sound like wonderful people!
The thing I hate most about the JWs is their 'I'm right, you're wrong' approach and unfortunately that mentality has a tendency to stick regardless of where your new beliefs take you, be it theism or atheism. The best people to be around are those that are intelligent enough to have a great discussion with and yet open minded enough to allow others to have their own beliefs about things without belittling them. Your friends sound like exactly those sort of people.
That was a great post and something for each of us to think about and try not to let our 'Jehovah's Witness show'!