I've been playing recently with a high dex/con Light domain cleric and they are awesome! Quickly got to a 19 AC and am very tanky. Radiance of the Dawn is just a fantastic ability. Its a great jack of all trades class (I even got Slight of Hand and Stealth so I don't even need a rogue).
Poor Shadowheart just has a poor stat spread. Although bumping her dex to 10 and con to 14 at level 4 really helps.
I'm not a D&D player but it seems like Dexterity is overpowered . . . bonus to hit/damage with finesse weapons - melee or ranged, AC, initiative, rogue skills. You just get so much for dex.
