I would say that the Catholics had been more hated, they are a large single organization with a figurehead, so it is easy to pick on them.
I would say this is changing though. A lot of theists who leave the JWs go to churches I guess you would count as born-agains. They want to go to heaven and that allows them to have this belief. I know some exJWs go Catholic, but I would guess more turn to other christian faiths.