I'm still stuck on this!

Almost leaning towards the Druid because it's "easier" for PvP. I think I need to PvP more with the group but my mind almost freezes up when I use the resto Shaman, I think due to there being so many hard casts.
So this is the data I pulled.

I had 5 players in a group standing on each other, which I figure I can calculate into the data since we always stack.
Healing Tide Totem and Tranquility healed for almost the same, so negligible there.
Both characters would cast Riptide/Rej on the entire party, Shaman would unleash elements, drop healing stream totem and then spam greater healing wave.
Druid would spam Swiftmend / Wild Growth and a triple stack of Lifebloom on a specific target.
The Shaman would spam heal a target with Earthshield up for the extra 20% healing.
These are my findings..
The druid overall healing was massive to the tune of double using the same amount of mana. I thought to myself hey it must be because of all that AoE, the single target must be terrible. They weren't, using this method the single target heals were also double. I could of added Healing Rain into the mix as well, that's actually quite a bit of aoe healing but the problem is it's a 2 second cast. More hard casting

AoE heals = Druid easy winner.
Single Target heals = Druid appears the winner.\
Utility = Shaman

Final choice? I still don't know
Tremor totem just by itself is a massive thing for PvP, but if I can't even get heals off in the first place whats the point?