I used to love JRPGs, but as time goes by I keep liking WRPGs more, and I think there is a reason for that.
As time goes by, the quality and depth of WRPGs 'choose your own adventure' story improves. Nowadays it is just amazing what they can mold into a game. Video games are an interactive medium, and the story should play out that way. ie: the more interactive you can make the story, the better.
Contrasted, as time goes by, the story-telling methods of JRPGs gets more and more dated. JRPGs try their hardest to be books or movies with gameplay added to the story. However, the best video game's story cannot compare to the best book/movie's story. This is because the video game has so much more to work on (graphics and gameplay) than books/movies (ok: movies sometimes have GCI).
To summarize, video games have a lot more to work on than simply story, and competing directly with movies and books in storytelling results in fail. That is why WRPGs storytelling is better, since they do something books and movies can't do well, interaction. I am probably going to get a lot of hate for this post, but hopefully some JRPGs can see the reasoning behind my opinion.