Hobbit. Played both and love both and that is the right choice to be making - they are both amazing and will only get more valuable and more fun. In the end Hobbit is far more engaging to me and everyone I have met who has played both. TH literally feels like a new game every time you master another layer of the complex game rules. Eventually you can grasp and monitor all the things going on at once, the dwarves on the screen, the changing modes and the chapters in the book but it isn't easy and it feels "meta"; like you are actually on a quest not just playing a game about one :-). The score is beautiful and the pin just looks beautiful even when off. The attract more is actually attractive - while WOZ is kinda, well, shrill.
There are so many great shots, too; don't be led astray on that. The E, the barrels, a loop. And the fact that it is so hard to control the ball after the spider and warg shots keeps you laser focused on the ball even when just tooling around in the middle.
I do want to have both pins, if it rains money. I saw an autographed blue/green WOZ in Milford CT and it blew me away but TH is an easy choice in the end. And it is shocking that it isn't ranked far higher on the top 100, but I assume that is because it got torched when it was first released. It will make its way up soon I suspect. My point being that it will end up being as or more collectible than WOZ. imho.