On the Hobbit thread, ozno reminded me that the Shire is a lame feature of LOTR, which is an otherwise great game. (I'd add the fork switches to that...)
For me, IJ is my grail pin, but the mode hole bounce out sucks big hairy donkey b@!!$.
So pick a truly great game - if it's your favorite, all the better.
What's the one thing that sucks about it?