I signed up late, as I didn't have any time available on Friday or over the weekend, but I found that by the time I did start posting, many of the original alter-egos had run out of gas... so I figured I might get some votes!
My vote for #1 is for Buster's Revenge, as uncompromisingly lewd and lascivious as could be without resorting to cheapness (unlike many of the other "alts"). Buster's raps in the "Challange Me" thread went untopped...
I had alot of fun with my alter-ego... so much so, that I am thinking of letting it take over...