Some more thoughts on specific changes and abilities.
Heart of the Crusader: Shows up as a separate debuff on mobs now, so you can see when it's up. Very nice.
Retribution Aura/Imp RA: It's doing 180-200 damage a tick now at my current gearing level - more than a 5x increase.
Consecration: Also significantly buffed. 110-120 damage per tick, a good 50% increase over live.
Repentance: The 1 minute duration is insanely awesome. I played with it in SP and it's going to be a wonderfully effective CC ability, limited only by the inability to recast if it breaks.
Judgements of the Wise: Restores about 1.1K mana per Judgement, plus the Replenishment effect, enough to keep me topped off unless I go nuts with Holy Wrath and Exorcism. Replenishment lasts around 10 sec, FYI, for a total of about 2.5% mana regen per application, but I didn't pay enough attention to be sure.
The Art of War: Not only does this provide an instant FoL surprisingly often, but when that FoL crits (around 1.9K on PTR), I get the HoT effect from Sheath of Light. Synergy ftw.
Sanctified Wrath: Hammer of Wrath crits for 3K - about 75% of the time. Instant cast. Doesn't interrupt the swing timer. Yeah.
Divine Storm: This ability is... insane. That's the only way I can think to describe it. It needs a higher cooldown, or higher mana cost, or something. I can hold as many mobs as I like with Consecrate and just annihilate them with DS. I was doing pulls in SP where the other mobs in the group would be at <35% health before I finished off my current target, and I could immediately start hammering them down.
Managing my rotation is a bitch - there are just too many cooldowns to keep track of. Judgement and Crusader Strike at a minimum for single-target dps, then Divine Storm and Consecration in any situation where I don't risk breaking CC. Hammer of Wrath once the mob gets low on health. Exorcism for undead/demons. It got to the point where I was watching my cooldowns as much as the game world.
Oh, and for Holy Paladins, Beacon of Light is sexy. But you knew that already.