User blog:Drek'TharSuperSword/Which username should I use?

OK so I want to make a new Twitter account (old one has lotsa problems, I put too many friends there), but...

I'm confused on which username should I choose.

Here are some which I want:

Flanhammer

Flankenstein (FLAN!)

Flankengargantuar

Frankengargantuar

Now, which one you prefer the most? I don't care if I pick long usernames, cuz I use it like once every week.