Oh this is up. Anway, onto the rate.
Pilcowatt is pretty good. I like how he is bigger then the others and is more easy on the eye.
Protowatt is far too small for my taste, however, this is just my opnion.
Attowatt is also good, but I still like Plicowatt more.
As said above, I voted Pilcowatt.
EDIT: Dang, everyone start voting pilcowatt.