Emil
Got kidnapped as a kid 5 suffering points
Turned into a weapon 2 suffering points
Lived for thousand years lonely with a butler in a scary house 5 suffering points
Eventually forced to kill his mutated sister 10 suffering points
Kills a village full of innocent people 8 suffering points
Gets nuked by Popola 10 suffering points
Rolls around headless for years, but has fun 3 suffering points
Eventually clones himself and fights alien invasions 10 suffering points
Goes insane 25 suffering points
Turns himself into a car +-0 suffering points
Total: 78 suffering points
Zero
Is enslaved as a child 5 suffering points
Used as a prositute 15 suffering points
Gets betrayed and nearly killed by her friend 5 suffering points
Gets captioned and tortured 10 suffering points
Gets jumped on by evil gods 10 suffering points
Is then doomed to kill humanity 5 suffering points
Tries to kill herself, unsuccessfully 5 suffering points
Suddenly gives birth to a bunch of semiclones 10 suffering points
Is forced to run around and kill them all, but has fun on the journey 5 suffering points
"Dies" multiple times in the process 2 suffering points
Eventually becomes doom of mankind anyways 5 suffering points
Successfully killed anyways 5 suffering points
Theory: Comes back as Queenbeast and kills half of Fakeeurope until she's being killed in RealTokyo and eventually dooms Mankind to death with the white chlorination syndrome being the cause for everything 15 suffering points if true
Total: 82 or 97 suffering points
You forget that Emil was in love with Nier and that obviously didn't end well, not to mention even with ending E Kaine and Nier both died and left him alone a long fucking time ago