I would always take the one in the final pot. You let here sprout there=? . well thats the right way. the other one in the beercup might not get to big. automatics most time stopp/ slow down growth when the roots hit the ground, and in worst case start flowering. the chance that she stays a dwarf is high. Buuuuuu t dont toss her away if you dont have space give her to a friend or anything else or do a littel bonsai experiment with her she is worth to live,,, greetings....(gib´ve her a nice small pot and make a automatic bonsai if you dont have the soace for 2 big pots