Overwatch – Does Orisa’s Supercharge Ultimate Stack with Other Damage Buffs

I've found the following sheet here which seems to have a lot of the information you are looking for. This lists the metered amounts per damage/healing and passive over time.

It's an offshoot of the main sheet here. I've posted the table below in case the page goes off line.

Hero            50%     100%    DamagePer1%  HealingPer1% DamageAmpedPer1%
Bastion         2:30    5:00    15
D. Va (Mech)    2:10    4:20    13
D. Va (Pilot)   0:30    1:00    3
Genji           2:00    4:00    12
Hanzo           2:00    4:00    12
Junkrat         2:05    4:10    12.5
Lúcio           3:10    6:20    19           15
McCree          2:00    4:00    12
Mei             1:40    3:20    10
Mercy           1:40    3:20    10           12.5         15
Pharah          2:30    5:00    15
Reaper          2:30    5:00    15
Reinhardt       1:50    3:40    11
Roadhog         1:50    3:40    11
Soldier: 76     2:30    5:00    15
Symmetra        1:20    2:40    8
Torbjörn        2:10    4:20    13
Tracer          1:30    3:00    9
Widowmaker      1:40    3:20    10
Winston         1:50    3:40    11
Zarya           2:30    5:00    15
Zenyatta        2:45    5:30    16.5         12.5

All barriers, such as Reinhardt's shield, Winston's barrier projector, and Zarya's personal shields, will completely negate an attack that deals more damage than they can absorb. A Reinhardt shield with 1 health will still block 1000 damage from Self-Destruct.