Right, but that isn't every fight.
Not every spec is going to be even on every fight.
Also, in a vacuum this example doesn't tell us much. We don't know if the Paladin focused on the tanks or raid or both. We don't know if the Shaman focused on the tanks or raid or both. And that does have a significant impact.
Are you two healing it or three? That is also going to make a major difference. If you're two healing it, effects like Beacon of Light become much more significant, so that could skew the numbers somewhat.
Mana at the end of a fight isn't really relevant. Especially when it comes to Paladins who get incredible amounts of mana from Divine Plea every minute. I speak from experience when I say that if you push your cooldowns hard enough, especially your mana cooldowns, it isn't hard to end fights with lots of mana left.
When the shield drops and everyone is on the outer ring, it is entirely possible that the Paladin lucked out and ended up with a group which, for whatever reason, took more damage therefore had more damage to heal up, thereby placing him higher on the meter.
Lastly, this is why I only partly pay attention to healing meters. Being ahead on the meters by a severe margin might mean something, or it might mean nothing. I imagine if you compaired total output the two healers would be closer, which is why I also look at total output when I analyze healers, not just total healed.
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Did Heart of Fear LFR last night.
Garalon is fun. Everyone hates him, I think he's fun.
Blademaster is awesome. I'm excited to see that fight on Heroic.
And the Viszier? I see him being way more engaging in higher difficulty, but ultimately it's a well designed encounter.
MSV LFR tonight.