With a Sword of Justice out, Knife Juggler becomes a 4/3 which is very difficult to deal with. The option to put Divine Shield on to creatures buffed in this way makes the Paladin trade far too efficiently.
Paladin also gets board removal via Hammer of Wrath (which is huge because it's a draw) and also Consecration.
I would like to see some balance changes made to this class... I have not even gotten in to the Secrets and other weapons available.