User blog comment:Morgan silve/Tia Harribel vs Nelliel/@comment-1393830-20100913052526/@comment-1268838-20100913114653

I think that this was just another example of a character coming face to face with their worst possible opponent, like all of the other Espada in Hueco Mundo did with other captains. Like you said, Harribel was overpowering Toshiro in his base form, and was even pummeling him while he was using his Bankai. Realizing this, she decided to pull an Ulquiorra and release without really having to to end things then and there. Unlike Murcielago however, Tiburon's powers had a very specific niche, which was water manipulation - which Hyorinmaru happens to be the strongest at. After releasing, she began to rely more on her water powers, which Hitsugaya was able to counter more easily thanks to his ice powers. And then ultimately, he had an ace in the hole the entire time, which he didn't want to use - he's even hesitant to use Tenso Jurin in Shikai, let alone Bankai.

Anyway, I'm still pretty sure Harribel is the stronger of the two. Considering Nel's released form, she definitely seems to be a direct combat type, with her only known attack involving throwing her weapon away. Cero Doble is great, but as Toshiro said about his ice clone, it's the kind of trick that only works once.