User blog comment:Salubri/Hollow. Arrancar, Espada & Vasto Lorde/@comment-44061-20100826223522

Yea but there weren't 10 Baraggan's running around and by and large the Espada are created or enhanced via Hogyoku by Aizen. Also not all beings look as they did from Hollow to Arrancar. Not all Adjuchas looked like an animal like grimmjow and maybe humanoid but larger. Taking from what we know of Harribel's original form while it had a humanoid shape it looked very little like her arrancar form or release. Baraggan's looked exactly like his release. An arrancar release would look something similar to its hollow form but not necessarily dead on. Nel may have been one and with minimal characteristics carrying over to her arrancar release, which was largely centuar-like. In any event we dont know what level she was or what her original hollow form looked like to determine it conclusively. Also it appears that reiatsu was what determined Espada order (As a recent Kubo interview via masked) while an Arrancar barggan had time dilation and respira he was the most deadly of the Espada, but by Starrk naturally before meeting Aizen being near other hollows they died something Baraggan as "God-King of Hueco Mundo" wasn't capable of hence why he was 1 and Baraggan only 2.