Nike free 4.0 flyknit vs. Nike flyknit lunar 3 vs. Nike flyknit racer?

Hi, I am in the market for a new casual/running shoe and was wanted to know the main differences between these 3 shoes.  Specifically which provides the most comfort, has the best support, and is the best for long distance running?

Thanks

I own all three, and I can tell you that the Flyknit Lunar shoe will give you better support over all. I love my Racers, but they're designed for sprints and long distance, not typical running, also the offer virtually no support, the 4.0 offers a wider coverage on the bottom of the foot, but with BARE FOOT feel.