The September issue of Sport Rider has a head to head comparison of the BMW K1300S and the Suzuki Hayabusa. You can read it when the mag hits the newsstands, or you can read it in PDF Format here: BMW K1300s vs. Suzuki Hayabusa.
You might expect that the venerable ‘Busa would be the hands-down winner in a head to head comparo with a BMW. You’d be wrong. They rated the K13S higher in every category except transmission, where both bikes tied. They especially liked the more comfortable ergonomics, the anti-spin control, and the on-the-fly adjustable suspension.