Faceless Award: Changes his/her avatar the most:

That would be j00, I seem to notice your avatar changes the most, because you post the most 😛

Looks like ST and I are the two main ones here. (Although he's still beating me by double)

I cast my vote for Amaster. I see that avi change at least 2-3 times a week.

I actually think that it's Amaster. I used to change my avatar once a day. I've softened down a bit to once a week or so. He's still changing it once every one to three days. I honestly do believe that he has me beat.