Dan - Welcome to the FJC. As for a personal preference, I like the ICON's. Having said that, I have 20 different FJ's at home and all perform great - 8 ICON's, 3 Sports, 3 XPS-1, 1 M Project, 1 Contour Casual, 1 DJT, 1 Greenjoys, and 2 Professional spikeless. They do have some unique characteristics. The XPS-1 are by far the most stable shoe in the line. The M Project gives me the most "feel". The Sports are very comfortable and stable. The Greenjoys are the sandals, so they offer a totally different experience (especially with early morning dew). The Contours (spikeless) are the most comfortable on and off the course. The ICON's are, in my opinion, the best combination of all the great characteristics from the FJ line. I wear the Professional spikeless to work everyday - they are fantastic business shoes. Style and comfort, all in one!
The advice above is great - especially the info about the shoe trees and cleaning after each use. Randy, Tim, Tim, and Ted are all outstanding in their knowledge of the products (they are all FJA's), and spot on with their advice.
Suggest that you consider looking at an FJ shoe that you can use off the course - such as the Professionall. You will likely find that you have found a new favorite off the course shoe!