I think we have no excuse to be rude to newbies just to ask as so normal question in the case of OTMA..all of them were beauties in their own. But debating which of them is the best one , is an innocent play. Of course, there will not be a definitive answer, and the asking is only an excuse to debate the sisters and their physical beauty. Anything wrong to have an opinion over this issue. Of course, political correctenss could thing that merely opining that "X" is prettiest than "Y" could be an offense to "Y". Nowadays, in the name of freedom, we cannot be free of having a personal opinion. No; all people is equal, for political correctness. You can't say that Maria is more beatiful than her sisters. You mut say that all of them were pretty and that all woman are pretty...
As for the authors...the serious ones never stated any opinions about the girls beauty. They only quoted ancient sources of people who knews them and just have their personal judgements about it.(Gilliard, Buxhoevenden, Kobylisnky, Vyrubova, etc, etc)
And now this is my own answer:
-Maria was the prettiest in physical features. She was lovely, healthy. A woman in the real sense of the word.
-Tatiana was not the prettiest but was the more stylish and interesting of them. She was exotic and sophisticated. An eastern godess. But I find her cold.
-Olga was the dreamer. The intellectual one. Lovely. Pretty. Almost as pretty as her sister Maria. She could be a mix between Tatiana and Maria regarding physical beauty. For me, she was THE BEAUTY, but we must add reasons who are not physical for it. Beauty is not only related to physic traits.
-Anastasia was the tomboy. Pretty, of course...But with the pretty qualities that could have Julie Andrews, Jean Simmons or Audrey Hepburn. The tomboyish beauty who could turn a man crazy, something ore than a classical beauty.
They were beatiful all four....No doubt. But there were four different kind of beaties.
Vanesa.