The 1st, 2nd, 4th and 5th get all of the attention. I'd argue that MOST people would have trouble getting all 10 (me included, I have to review every few months) correct. They were all written for a reason. I believe there was a significant amount of thought put into the document as well as the to the order of the amendments. For those that argue the 2nd is about hunting, I find it highly doubtful that the Founding Fathers penned the 1st amendment for so many of our Freedoms and then for the follow on they just wanted to make sure we could go shoot turkey and white tail.
The Yamamoto quote that gets thrown around a lot by the pro gun side has failed to be attributed to him in a specific instance. It's a cool quote but I think it weakens our argument when we get away from the facts.