It's a tough one... I mean I can understand why some people would say that JPark has better theme integration.
JPark has the dino head and the car, and the raptor pit.
The playfield being a map, and the animations really do kind of help the feel that you're traversing the park.
But, to me theme integration is also about a beauty aesthetic. Stern's JPark is not a beautiful game. It's an amazing game and I do think it is one of the best modern pins. But, its not a looker. Playfield art, while it reads great. Its boring. It is.
Now with Elvira. Nice playfield art, very colorful. The house is perfect, and just the gargoyle toys, and how all the important stuff and characters in the backglass. I mean... Its all right there on the pin, in the pin... It's just great. Elvira looks great and I think having the old clips of the movies(a type of integration) makes it feel like a late night horror host show that you are watching. Which is kind of the point of the theme. If that is not theme integration I don't know what else is.
Ohhh well... Can't win them all. But, I would say JPark one of the best games of the last 5 years easily, but for my money Elvira is better at theme integration. Hell, that's why I bought it over Jpark. Better theme for me, and in my stupid opinion better integrated. But, I voted and well... My vote wasn't enough.
No biggie. Life's too short to dwell.I'll just appreciate the game every time I play it.