Hobbit.
MM is obviously an awesome game, and I will always like it, and I'll probably own one again someday, but how many times can I play that same machine? I was in college when I first started playing MM on location when it was new. I owned one in my collection for 10 years. Even my friends had gotten tired of playing it when they came over, after so many years.
For those who haven't owned a MM before, or played it for past 15+ years, I can sort of appreciate the excitement for the MM remake. But I feel none of that. I'm excited about a new title based on an amazing theme and (so far) exceptional motion pictures.
Production of both TH and MMr will leave plenty for the resale market, so there will be value depreciation in both titles for those who purchase new. Buy the title which compliments your pin mojo the best.