This is a really hard choice, as she did wonderful in all three roles, but like Debina, she reached the peak of her acting in the Mother Sita episodes. She was soooo maternal, sweet, and caring, just loved Deepika in Uttar Kand.
I agree Deepikaji did great acting in many scenes. As princess Seeta she was not given much scope unlike Debina but I know Deepikaji would be natural in all her scenes. I go for vanvaas scenes as in Luv Kush Arun ji got less scope but in vanvaas scenes he got more scope and still Deepika ji made her presence felt. I feel that she never overacted and thats why I remember her only as Seeta ji.
It's hard to choose because Deepika was great in all aspects. I also agree that she didn't get much scope as a princess. I'd go for Vandevi because she was just awesome there!😊