Which is better? St. Julien vs. St Estephe?

[walnut8]

I've just returned from Bordeaux and purchased 2 bottles. However, for the life of me, I can't remember/distinguish between the two unless I opened it up - which I don't want to do for awhile. Can someone help distinguish between the two for me? Which is worth more (I paid ~2x more for one than the other) and what they're worth here in the States?

1. 1996 Chateau Longoa Barton, Saint Julien
2. 1990 Beau Site Haut Vignoble, Saint Estephe