A friend of mine will be buying a sport tourer soon and is researching his options. I had recently read a compaison article that named the FJR as best all round sport tourer but I can't find it now. It was a recent article. Has anyone seen it?
All 4 bikes could do Sport touring, the fact the ZX and the Busa are in the picture, sort of means your friend is hot for some grunt, right? Therefore the two designed for ST the Honda and the FJR, the FJ licks the ST with performance. If your friend was more concerned about something closer to a luxo-tour uber smooth the V4 ST 1300 might be his choice.
Nothing like riding them all and making a choice. It can be done.