My most favorite Fraggle was/is Mokey. I loved her when I was a kid, and I ended up being someone intensely drawn to art and poetry-both reading it, and writing it, and creating. *go figure!*
I also liked the little Doozers alot-I don't really know why, I just thought they were cute and made such cool things. I always felt kind of sorry for them when the Fraggles would eat their buildings...