What can I say that hasn't already been said by anyone who's played a Palladin in the wrath beta. AWESOME!
Here's why. After testing min max in holy, I decided to try a full hybrid build, and the results are blowing my mind! I'm now a beliver in the shockadin, and I am confident they will dish out the pain come wrath.
My current spec at level 70 in the beta is 31/0/30
Talent Calculator - World of Warcraft with my 10 more points to level 80 going to be spent in ret getting a nice new CC, repentance. This may be hard to wrap your head around, since on live realms, this would be a joke, but bear with me.
With the changes to spell power, and crit affecting spells and melle, it's possible to have a shockadin stacked up the wazoo with crit dealing massive damage, as well as being able to heal as hard as a full holy pally in healing gear. On top of that, holy shock now has a much shorter cooldown, and the sheith of light and judgment of the wise talent in ret just seems to fit TO perfectly with this.
To make things crasier, I'm in full Holy gear from BC, and I can dps the HELL out of anything with critting holy shocks all over the place. I'm slamming people with almsot 3k white holy shocks, that can crit for much higher. Plus, if you stack al the holy crit abiltiies in the holy tree on top of the crit talents in ret, and then add all the crit from your gear, it's going to get a little crazy.
To illistrate my point, I was ont he beta palladin forums, and a druid decided to come ont the forum and cry that ret pallys are unkillable now, since they are healing like holy pallys.
WoW Forums - Ret Heals? (Logical post)
With the nice new abilities, and lovely trees, I'm pretty sure I will be making my Paladin my main for the expansion. I still have a little hope they will start paying attention to warlocks before launch and fix some glaring problems, but so far it's been a failure. All the more reason to join the light