Yeah, it's completely unfair against any melee classes because they can't be dodged, blocked or parried, but they can't be resisted either because they deal holy damage, and they crit for x2 damage. On TBC that's okay because judgements are a big part of a paladin's gameplay. On WotLK, however, where judgements would crit for 5-10k, in addition to paladins already having other strong abilities, it's just broken and unfair. And it's the reason why pallys win most outdoor PvPs during leveling and all that - because they already have a huge mechanics advantage and they don't even need to do anything to use it, except for clicking one button every 6 seconds.
But that's just Blizzard...