***disclaimer: i am biased because I am selling a pair
that said... they are pretty similar to the JJs but a little more big mtn oriented in that they have a little more balls, and have no tail rocker. otherwise i think they ski pretty similarly-- more similarly than any other two skis i can think of, really, besides i guess some park skis are nearly identical
i hate 5 point sidecut, which is why im selling mine...but if you like it and want something a little less jibby than the JJ, then it might be something youre interested in
i can't offer any knowledge on the other two skis you mentioned, sorry
see my threads if you'd like to see my norwalks for sale, btw