I've had EBC's, stock rotors, wave rotors and superbike rotors on my R1 (3 sets of wheels and tires) and a bunch of extra calipers/masters/lines...
The EBC floaters are better than the stock in terms of feel when matched to the EBC brake pads. The wave rotors have a better initial bite (by far) than the stockers or EBC and have a very linear feel to them. I should note that they are not floaters, MSRP will be $139.95
The superbike rotors are very much a track only rotor as they have a HARD bite and have a lot of shudder at low speed due to the cuts on the rotor. For the 500 I think that the wave rotors are the best solution (w/o swapping to a brembo, ISR, or Beringer master) so I'm figuring out what needs to be done to make it happen for everyone..