I get the feeling Lois would have traded dolls for books pretty early on. But if she did have dolls, Barbie or something like it has the advantage of being a "grown-up" doll that can have adventures, instead of baby dolls that just need caring for.

But I picture a 10 year old Lois in a room with a full bookshelf and a few stuffed animals on the bed, not a lot of "play" type toys by then. And with friends, she probably chose more active type things - jump rope (double dutch?) and the like.