If I remember what I read from the Wiki, there's no special Gillian. Just that from those humongous number of Hollows that combine into a Menos Grande, one will eventually gain control over the others and evolve.
Who is your favorite Captain?
Who is your favorite Espada?
Just curious to see.
For those who don't know yet-
I could go on and on why I like her, but let's stop here. XD
Gee, idk about this. I never thought about them as a personal character, I just see them as a whole. Though I guess I could say Harribell/Starrk/Nell, cause they're the only ones that seem to care after their Fraccion. Well, yeah. And I hate Zommari >.>