http://ebcbrakes.com/what-is-sintering/
As mentioned the RSV has harder rotors so it can handle more abrasive and radical materials for stopping power.You may want to go to a better material for better stopping power, not necessarily for better longevity. As mentioned replacing the pads is quick and easy, just remove the saddlebag, the plastic top cover on the caliper, pull the 2 pins and replace the pads. There is no need to remove the caliper, just pry the caliper apart before pulling your old pads. A shot of aerosol brake cleaner is in order before installing the new pads whichever ones you choose.
Also, for some strange reason one pad will wear faster than the other. It is a good idea to swap them from one side to the other at around 5K to 10K to get them to last a little longer...