Hammerdin is not great in pvp in the current meta but some people are amazing at playing it. Smite foh tele hammer combo is pretty gg but hard to pull off on someone good with high fcr.
Zon probably has the best class in the right hands, very hard to beat a top zon player with any class. Smiter is supposedly the hard counter but things have changed with dodge being able to negate smite and not being able to fhr lock them like before. Pally needs some love with certain bugs like not being able to get out of charge lock, the d2r changes really took Pally down a tier or 2.
Agreed charge lock and desync should be fixed but also in d2r Foh was buffed. Bug fixes sound good. Buffs for pally seems over the top since they are already very very good and versatile.