You can make it work awesome in PvP also. Its not as bread and butter (cookie cutter I dunno what phrase to use).

If your Pally is Retribution, you have 6 second sleep, 6 second stun for people healing your priests DPS target. Also if Warrior/Rogue gets in your face you can bash them. Paladins put out nice burst DPS but only every 10-15 seconds or so, so you time your DPS right and its very very effective.

4 Renews is amazing, and later on Prayer of Mending is awesome.

Another reason I like pally as main, is people FF the target closest. So I bubble at the last second and let them waste all their big cooldowns on me. Works well.