I find her prettier as she's aging.
In her solo period there sure were cool looks, but not really attractive, in a "hot" way.
I prefer her when she looks more mature (like in her dress in the himitsu PV) or "simple" (like in the Gunjo biyori PV).
But coming back to the topic's question : yes, is there another answer
? She's not sexy in a classic way everyone can think of, like boring blonde anorexic models with big boobs, but for me, she is even more. (but i don't like stereotypes, anyway)