How do you choose?

I know we can't complain because there are lot of people out there waiting for a referal for a baby they will probably never get before the adoption closure, but this is killing me! I can't stand sitting here and waiting for information on another boy while time ticks by and we risk losing everything we worked so hard to accomplish. We have received info on two other boys, but we would have to change agencies. How do you choose between 3 boys whose fate lies in your hands and probabaly won't ever be adopted if you don't pick them? How do you pick a boy who is in the orphanage with two older sisters who by Vietnamese law are too old to be adopted? Do you take him from the only family he knows? Or do you choose another sacraficing his economic future in the care of his sisters? Is that fair to them or him? I don't know? I never knew this could be so difficult. When we adopted from China, they just sent us a picture and said this is your daughter and off we went. I wish they would just choose for us because this will be the hardest decision we will ever have to make. I hope it happens soon!