In HSDS, while she was dying, Yin Susu used herself as an instance to teach her son Wuji that womankind's mind was very wicked and the more beautiful a girl/woman was the more dangerous she would be.
I know she did so just because she wanted Wuji to be cautious and not have a tragic fate like his father's, not because she was biased against beautiful girls.
Later on, Wuji had 4 loved girls: Zhao Min, Xiao Zhao, Yin Li (a.k.a Zhu'er) and Zhou Zhiruo, they were all very beautiful but various in personality.
If Yin Susu were still alive, which one among those 4 girls would she choose to be her _only_ Daughter-in-law?