Hm... It's up to you but I personally like this one best. ^_^ I'm a big fan of turquoise though so I might be a bit biased. Its a good color combination though!
I'm not sure if you already know, but when you click on the links in your signature's image map, it takes you to a yahoo page that doesn't really have anything on it. :( Sorry, just happened to see it in an old event thread and thought you might want to know.