I'm guessing you're wanting to create something similar in style to this.
I'd say your best bet is probably Super Sculpey. Its flesh toned, holds detail well, and it is strong. I've dropped pieces from four feet onto concrete and not a crack or scratch. But even just any polymer clay would suit. Super Sculpey only comes in 1lb box as its smallest size, where as with Sculpey III, Sculpey Primo and Fimo clays come in smaller quantities and often go on sale at local craft stores.
The problem I've found with Sculpey light is it's much more elastic and so its much harder to get details to stay sharp. It is very light though so if you're worried about weight on your doll it would be a good choice. I don't have any experience with Sculpey bake and bend so I can't make any comment on its usability.
Here's a page where they go over the basic differences between the different types of polymer clay: http://www.polymertutorials.com/polymer-clay-types-tutorial.html