She doesn't have a pretty waist but her pelvis covers it. She has very pretty legs.
She has a great waist-pelvis line and a good pelvis. But her waist is too long, making her legs look average.
She's too skinny but she has very long legs. She looks good in any clothes.
She's short but she's big-chested and has good proportions.
She has no disadvantage. Other members have #1 body parts and Seolhyun has #2 best parts.
Pann: SNSD body you want to have the most?
1. [+233, -5] Seohyun for me. Overall, her body is the best.
2. [+175, -7] Seohyun. She's skinny and glamorous.
3. [+109, -10] Seohyun or Tiffany
4. [+61, -2] Seohyun has a great body
5. [+57, -6] Yuri for me. Her waist line is so pretty.
6. [+48, -2] I think Sunny and Seohyun have top 2 bodies in SNSD
7. [+46, -2] She doesn't lack anything. She's tall and pale. She doesn't have a thin waist but her big pelvis covers it. Her breasts are quite big. Her calves and ankles are skinny but her thighs have fat. She has honey thighs. I heard that she exercises hard. She used to be skinny in the past but these days, she has thigh muscles. She doesn't look too fat because her arms, wrists, and ankles are very skinny. Just like the OP said, each SNSD member has the best body part but they also have a disadvantage. But Seohyun doesn't.
8. [+35, -6] Tiffany. She has pretty legs, shoulders, and collarbones
9. [+30, -1] All of them have disadvantages except Seohyun. Balanced Seohyun.
10. [+25, -5] Yuri for me. I love her dark skin and she has a good body.
11. [+16, -3] Yoona has an amazing pelvis but she has small breasts. Yuri has a glamorous body and dark skin but she has short and thick legs. Sooyoung is tall and skinny but she's not glamorous. Taeyeon and Tiffany are skinny but they lack something. Hyoyeon and Sunny are glamorous but they're short. Seohyun has height, body, pelvis, breasts, legs, and skin. She's balanced.