#1 by sales: The R1 or ZX-10R
#1 by best ride on the road: 1000RR, it has a 'yes master, its already done' feel to riding it, way more planted than the other of the big 4's flagship liter bikes.
#1 by racing: ZX-10R or 1000RR, depends on the track. The ZX-10R has the upper hand on power and weight but the 1000RR kicks serious patuttie in corners.
#1 for stunts: ZX-10R. Power, low weight.
#1 for looks: Any Agusta F4. They make that cycloptic headlight look good, unlike Ducati or Suzuki. Ah...just think of how beautiful the 998 was...