I'm sure this has been discussed in some way, shape or form on these boards before, but I searched and couldn't find it.
Every so often, I like to purposefully pull out a bottle or two that is more of a sentimental favorite and not necessarily, if graded in a vacuum only on the wine's merits, the best wine. They always bring back great memories and I always enjoy them for that reason exactly. Good wine, great memories - a real sentimental favorite.
What are yours? Most recently, I popped a 1998 L'Ecole Apogee Pepper Bridge Vineyard for such a reason. This is one of those that was special, but was/is also a great wine (albeit slightly over the hill). I enjoyed my first bottle on the patio of my "hut" in Yelapa, Mexico with my girlfriend, now wife. I had schlepped that damn thing the entire way there and it was awesome. L'Eecole was also one of the first wineries of which I was truly in awe, and I can remember my dad and grandfather both pulling out older bottles that were "legendary" in my memory.
Feel free to share your sentimental favorites!