I have Bendix CT-3 ceramic pads on my DD, and I have been very happy with them. They are the smoothest, quietest pads I have every used. No noticeable brake dust after two months. Equivalent stopping compared to the semi-metallics I normally run, with less fade on long descents. Less fade could only help a heavier vehicle like a 'sploder. I also followed the manufacturers recommended break-in cycle (burnishing):
"A series of controlled moderate speed stops (15-20 Stops from 30-mph w/30 sec cool down) is required to properly "burnish" or break-in a new set of pads. During this initial stopping period, the process of lining transfer from the disc pads to the rotor surface helps condition the rotor surface to properly seat the brake pads. All pads are cured and all pads need to be burnished."
from
http://www.bendixbrakes.com/techCorner/faq.php
Also worth noting - I replaced my rotors when I installed the new pads, using the standard rotor, no special coatings and no problems so far. Be sure to check the manufacturers recommendation's for the specific brand of pad you want to use. At a minimum, have your rotors re-surfaced, but remember you are removing material and the rotors will be more prone to warping because they will not be able to dissipate heat as effectively.
Ceramic pads, unless it's a race application, seem to be developed and marketed as quieter alternative to semi-metallics. Ceramic pads, in theory, cause less wear on the rotor and produce less brake dust.
I have no experience with kevlar pads, sorry. The ceramics I am using are noticeably better, but not a dramatic improvement in braking performance. Hope the info helps!