I also made my decision to go with the high-viz option during a heavy thunderstorm while playing hide and seek with a bunch of 18 wheelers on 1-40 in North AR. I went with the Olympia Phantom 1 piece suit and have really loved it. I talked with several owners and also looked at all of the reviews comparing it with the Roadcrafter. The summary of what I found was that the Phantom was more water proof and cost less, the Roadcrafter was slightly easier to get into and out of.
Note: Regardless if you go with the Phantom or the Roadcrafter, go buy 3 cans of spray on Scotchguard and seal the jacket to keep the colors bright before you take it on your first long trip.