I have a PJ3 and Polo 10 in Super. I realize that both of these are larger than the models you are considering. For me, the Polo 10 handle is fine and I really like this brush for my creams, the Chubby 1 in super I have is outstanding with soaps, and my PJ3 in super is the best all around brush. If the choice is between the PJ and Polo for soaps, I would have to agree with everyone else that the PJ is the clear winner.
"Better to keep your mouth closed and appear a fool, then to open it and remove all doubt." --Mark Twain