I dont really think you can compair the 2 .The AXIS is a carbon shaft,while the ACC and super slim are carbon alluminum.The ACC is an awesom shaft.I would also say the Super Slim would probably be better,being slimmer and with the new HIT technoligy.
There is also a big price difference between the ACC or Super Slim and the Axis-----good luck on your decision.
I may be checking out the Super Slims real soon,I really like Mikes