I think Na is one of the few people who would rather play say Serena Williams in a slam final. Since she would feel no pressure, everyone would expect her to lose no matter how well she was playing going in, and she could swing from her heels which is when she plays her best. She still might lose, it is Serena after all, but she would be unlikely to be encumbered by nerves and choking. Even playing Sharapova in the final instead of the semis would have been a better situation for her. Someone like Azarenka I think while she respects and knows that she is a great player, she feels she is capable of easily overpowering (which she is) and that she should beat if she holds her sh1t together, and I think that makes things harder on her mentally just the way she tends to think.
TMF on Jan. 2011- Serena is washed up for good, TMF in Oct. 2009- Nadal has won his final slam, TMF in 2011- Woz will beat Serena at U.S Open