Replying to Jskis vs. On3p

Im trying to get a new pair of skis this year and im torn between filthy riches and all plays or whip its. Im 5'9" 150 and am trying to really send it this year in the park. i got backies down and comfortable on rails. I also ski the rest of the mountain hard and fast when im not in the park. Ive skied 3 years on K2 recoils 169 (all mtn) and want something more playful and am torn between these skis because i like the specs of the filthy riches but all the Jski reviews and styles are so postive so im wondering how park specific the filthy riches are and how they handle the rest of the mountain? and how awesome are Jskis comparatively to them? Also should i grab a 171 or jump to a 178