The most I've seen of JP is a fussy playfield photo, think it's a bit early to be saying x vs y. Seems there is more love for JP vs WW theming, but I'm just the opposite but that's just personal opinion on theme. Still, have my heart set on a WW, but I won't spend money until I get at least 100 games on it on location.
I think saying x vs y on a brand new game and a yet to be released game is shooting the dark at a thug while your family is in the house. Might hit the thug, but you may hit your family. Wait until you can see before taking the shot!