Myskina has overachieved like crazy, and, yeah, it's unlikely that she'll ever rise higher than she did in 2004. She was just steady and smart enough to take advantage as Serena, Venus, Justine, and Kim C. all dealt with stuff that prevented them from playing at their best or flat out from playing period.
But I'm going to disagree and say Maria S. is the one that's already broken away from the pack and will continue breaking away. She's only 17. She's only going to get stronger, craftier, and all around better. She seems to take tennis much more seriously than Venus and Serena, which is my way of saying that I don't think the modeling, acting, and whatever is going to distract her tennis. Technically, she's very, very sound. I think she's by far the best of the Russians.