Paladin stun, roots and blinds were always useless in pvp. I believe knights always kinda sucked melee wise. They get some boosts in Velious, but I don't want to do your work for you. Here are a couple examples I found int he patch notes found here:
http://www.tski.co.jp/baldio/patch/19992002.php
Paladin ex's
The Paladin "Holy Forge" discipline will now give paladins triple the normal chance of scoring a critical hit. Each critical hit has a percent chance to be scored as a critical blow.
Defense skill cap made exactly same as warriors.