I understand your logic in thinking of moving from monitors to full range speakers. This would also seem to equate to doubling your amp power as most of the speakers you are looking at are more efficient than the Rockports.
Given your desire to stay with the ARC gear, I would recommend the Sonus Faber speakers, as I think you would get a more balanced sound. Your ARC gear tends to be very revealing, Wilson speakers also tend to be very revealing. That combo may work if you insert some warmer, musical cables/cords (like the Transparent that jafant mentions). However, I would think that the more musical sound of Sonus Faber speakers would mate nicely with the high resolution of the ARC electronics.
As always, YMMV. Happy Hunting!