hey you have narrowed it down to, in my opinion, the best two contenders in the realm of fat skis.  the jp is sick, really light, the raised tail is a definite plus and i like how the ski feels alive when you ride it.  i'm 6'2' 180 by the way so you know where my opinion is coming from. having ridden a couple different versions of the "tha 187's" i feel like they are more of a tank ski and better all around.  i know that nick greener won the big mountain comp on them (i don't know anything about greener, style wise or personally)  but that might prove their worth in that department. rory silva won mt. hood's vegetate this winter on a pair of "187's"(60 foot table to big qp), and rocked all last season and into the summer, the majority of his segment this coming fall with us(inf media) and filthy rich productions are aboard tha 187's, if that doesn't demonstrate versatility, i don't know what does.
i'm not sure if you're considering anything but the two, but if you're looking for something softer try the arv(so fun all around) just some input, hopefully it helps.  let us know how it turns out.
max