Definitely Exodia Paladin. Only sad thing is the Equality nerf almost killed it, but I still win once in a while against aggro with the Shirvallah/Zola package. Against control it's really favored because you draw your combo pieces real quick with double Call to Arms.
Odd Paladin is obviously the hardest and most rewarding deck... HAHAHA!!! Just kidding!
It was a fun Wild Deck up until the Saronite Chain Gang nerf but I had fun with a Val'anyr Paladin deck that used a few hand buffs and copy minions like SCG, Doppelgangster, and Echoing Ooze. It even used a lesser known card called Paragon of Light for the taunt/lifesteal effect after it got buffed. The deck wasn't super powerful but it could snowball and really surprise opponents.