For straight line speed to topend, the hyabusa is the bike to have, but if you want to ride a real street legal superbike, the Ducati 1098R or ducati Desmocedici is the bike to have. Italian exotica.

The 1098R has the best power to weight ratios, and is the closest Superbike to what Troy Bayliss actually races. 186 HP and 99Pounds of Torque. And the Desmo is the same MotoGP bike.

The R1 is heavy and has no topend.

A Ducati is noisy, because it is the only bikes with Dry clutches, thats whats making the noise, not a loose enjin