In my runs with the pally team, the single biggest problem with melee groups is being in range for AoE boss effects. That being the case, passive/semi-active healing become a big part of living long enough to kill whatever you're killing. As things stand today, ret pallies are the kings of self-healing with judgement of light and lay on hands. For those really rough fights, seal of light is stupid amounts of passive healing with each hit. I think probably the only thing that would heal better would be 4 rets and a bear druid for Improved LotP heals.