Wizard of Oz:
- Complete and DEEP rule set that mere mortals will never complete.
- Jam packed and brimming with toys
- More stop and go than flow.

Hobbit:
- Good rule set that, judging by the history of Wizard of Oz and Keith Johnson, will likely get code updates for a while. If you like code updates, you could be experiencing Christmas morning over and over again for a couple of years.
- More open playfield. It still is rich with features compared to Stern machines, but it does not seem jam packed like Wizard of Oz.
- More flow with two great Fish Tales style ramps

If you can imagine owning Lord of the Rings someday, consider getting the Hobbit. The pair of Lord of the Rings and Hobbit would represent not just the complete movie series, but a pair of matching machines with rulesets conceived by Keith Johnson. I wonder if Keith Johnson has or will put in easter eggs referencing his earlier work on Lord of the Rings?