Personally I think they kick ass right now.
My first impression of Ret was pretty much like this smiley -->
I went off to Northrend and killed some mobs.
CS and white hits/crits did the same damage obviously.
I did have a whopping 690 spell damage from my AP.
So I tried some judgements first.
I love the new judgement system since well you keep your seal on you while you can just judge every 8 seconds, which makes it a lot more worth it.
On top of that you can simply choose what to judge wisdom/light/justice and you gain a shitload of mana in return trough judgement of the wise. Which can really keep you going for ages and ages.
Divine Storm is a really nice skill it deals nice damage especially when it crits (righteous vengeance) and the heal you gain is decent but nothing major. it is nice for when you're in a group where a rogue or shaman gets healed from it aswel during boss fights. And well the animation makes it look really impressive, which it is.
The damage on judgements is pretty neat. To give a comparison :
in live my damage on JoC is about 600 and 1k crits .. on stunned targets. If I remember correctly.. I hadn't played my paladin on live in a while
But the JoC damage on Beta is quite insane. I've had 2500 hits and 7500 crits on stunned targets (with wings and trinkets popped mind you)
I figured this coefficiency might go down.. since well I've tested my rogue and druid aswel and they gain nothing as major as this in damage... yet. Although Druids (feral) got some really nice issues worked out aswel, during their Berserk buff you can almost spam Mangle faster than that you lose energy... which is quite the upgrade.
And when I tested my paladin as holy and noticed how easilly I get holy shock crits and can instant holy light. I wondered if perhaps the damage would be staying anyway since healing will most likely be a lot stronger and it would be more about MS debuffs which the paladin doesn't have and shouldn't have as long as they have this kind of damage.
On a side note. You can actually throw a few heals as Ret. You gain mana back trough your judgements so that's really nice. But your heals especially with sheath of light are a lot more powerfull.
I healed for around 2300 hit and 3100 crit in live with holy light. And on Beta I heal for around 4000 hit and 6000 crit with Holy light and when I crit for 6000 I get about 850 sheath of light ticks on me.. which is pretty impressive for a Retridin I'd say.
But then again Sheath of light will be available for a holy paladin who skips out on Beacon of Light aswel. which will make their heals insanely powerfull due to the high amount of crit.
So all in all at the moment they're probably working on the coefficiency for Judgement damage and besides that I think they are pretty damn nice for as far as I've tested that is.