If SISTAR had to pick one member as their sister-in-law
Hyolyn picks Bora:
because she is someone who guys would really like
Hyolyn doesn't pick Soyou:
because she has no aegyo
Hyolyn doesn't pick Dasom:
because she is younger than her
Soyou picks Bora:
Soyou doesn't pick Hyolyn:
because Hyolyn would boss her around
Hyolyn wants Soyou to pick her:
because they can share clothes
Dasom like all three, but picks Bora:
because she would be nice to her mom, but worries that she may leave her husband because she is too popular with the guys.
FYI Bora, Soyou, and Dasom all have older brothers...