Which Pure Social?

I want to buy just one pure social pheromone product and I have it narrowed down to the following:

1. Glace
2. Core
3. Connections XS

Glace and Connections XS are based on Beta-AndrosteNOL and Alpha-AndrosteNOL. I can't find a list of pheromones in core but I have to assume that it also has Beta-AndrosteNOL and Alpha-AndrosteNOL because it is a pure social product.

I already spent so much money on pheromones this year so I really don't want to purchase and test all three. They are all in the same class of pheromones so I feel it would be redundant to purchase all three.

Here is my question finally:
If you could only buy one of the above listed products, which would you purchase? Or does it really matter?

I'm guessing that all three are excellent products so I can't go wrong no matter what I decide. I just looking for people's opinions who have tried these particular products.

Right now I'm leaning towards Glace just because I like the glass bottles that Alpha Dream uses and no other reason.