The previous S vs. P discussion is pretty funny to me, considering how terrible mana was for Shamans in Highmaul while Paladins breezed through 15 minute Mar'gok with no issues.
I'm not going to say Paladins are fun to heal with in 6.2 right now, but if you swap back to Spirit enchant and run 2 regen trinkets you won't oom on a fight while playing conservatively. It just might be possible that double Pally won't be in the optimal comp week 1, especially with Druid's insane tank healing at the moment, but class tuning isn't done yet.