I will agree with Mr. Dodge as far as what our friend may actually want to get. I do putt with Summits. I love the low profile and the fact that they go straight for days.
It would be really tough if I could only choose 2 Vibram discs and had the whole lot to choose from. It would be completely dependent on the course. The Summit would be one of the 2 simply because I do putt with it all the time and have learned to do lots of fun things with it.