Problem with reward structure

[Zeonsilt]

How would you judge the MVP? I am going to use Shatter as an example. If I do X Damage to Players, Y Damage to Ice, Heal Z Damage, Score N Assists, or Score K Kills. Which has more weight?

I can already point out flaws in following this kind of methodology

Pretty hard to do something like this in FF XIV due to "Tank/Healer/DPS", it's not MOBA or FPS ¯\_(ツ)_/¯
That guy wanted to know how other games reward players.

That answer also applies to some MMORPG, like Dragon Nest for example. When there's no Tank-Healer-DPS thing, it solely looks at your perfomance in kills/damage dealt and sometimes "hold the objective".