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...
I like the skittles colored ones, I honestly think the Seahawks color ways is the lowest key you're going to get... Counting the days for the multicolor