I saw the chichuahuas today I loved the one had picked out but I also fell In love with another one HELP ASAP?

ok I went to see the chis today and I fell in love with another one and I want them both how ever Im afraid can some one give me some advise and some pros and cons. The first dog I want is a little brat she doesnt kind of like being with her other litter mates and she is kind of the loudest one there but she was awsome when meeting new people her breeder take the 3x a wk to a local nursing home. The other one is sm she will probably weight the breeder said about 3 pounds and the other one about 6 pounds. This dog is friendly and wags her tail when in the nursing home when she meets people and cuddle her. However she might be too small and she might easily get her before the 6 pounder. But I REALLY WANT THEM BOTH WHAT SHOULD I DO?