ARG's are BOMBER in crud.  they are stiff as hell and have a small tip, so they just mash through crud.  Personally i use them on any day 4" and up because they make it feel like it's twice as deep.  they have an instant pivot point on them so they are super good in tight situations, but u can CHARGE on them as well cause they are soo stable.  THe one thing is, when dropping big cliffs, to flatter landings, they don't sink in as much as most other skis, cause they are fat under boot, which makes for slightly harder landings.  But who cares, 99% of people on this site don't ski legit 20+ ft cliffs anyways.  JJ's are more versatile, because they can rail groomers, but honestly, i get bored with groomers, when ever there is any fresh snow.  Also the poppiest ski ever, u ollie on them in pow and you just shoot out, its sooo fun,  they ski super well switch, and are fun to jib around on.  Just know that if you get them, u WILL NOT be dissapointed.