go with the bent chetlers
they ski shorter than they are due to the rocker, im a light guy, 130 5'10 and ill be picking up a pair this fall.
the length will not be a problem for you at all
I know ns has a hardon for on3p and i'm sure they make great skis, however they do not have the years that atomic has into building skis, and providing quality warranty.
Atomic will exist in a decade, odds are on3p won't.
they are going to be my japan trip/ heli ski pow ski, i've spent the last 3 months picking a ski...