If I were going to change my name right now, the very first thing that pops into my head is Zillah. The first time I heard this name was in 88 Lines About 44 Women:

Zillah was an archetype
The voodoo queen, the queen of wrath
It just always stuck out to me since then. I name all of my (female) characters in video games Zillah. I like S/Z names and names that end with Hs, like mine. It's pretty unique and fits the bill, so!

Then I'd have to change my last name to something else, because Zillah Cobb sounds ridiculous.