The distinct advantage of light armor is its tech/biotic protection, so that should be a major factor in choosing what armor to equip your character with.
Hahne-Kedar offers the best armor to low level human and turian characters, while Phoenix armor is best for Tali.
Rosenkov's Titan armor is best for mid level characters, though players valuing shields can also choose Ariake's Mercenary armor.
At high levels, Kassa Fabrication's Colossus armor offers the best damage protection for all characters, though players looking to outfit Garrus with high tech/biotic protection should look for the elusive Phantom armor.
Aldrin Labs I II III IV V VI VII VIII IX X
DMP Agent 5 7 9 11 13 15 17 19 21 23
SHD T 49 63 77 91 105 119 133 147 161 175
TBP 12 14 16 19 21 23 25 27 30 32
DMP Hydra 5 7 9 11 13 15 17 19 21 23
SHD H,Q 49 63 77 91 105 119 133 147 161 175
TBP 12 14 16 19 21 23 25 27 30 32
DMP Onyx 5 7 9 11 13 15 17 19 21 23
SHD H,T,Q 49 63 77 91 105 119 133 147 161 175
TBP 12 14 16 19 21 23 25 27 30 32
Ariake Technologies I II III IV V VI VII VIII IX X
DMP Mercenary - - - 18 20 22 24 26 28 30
SHD H,T - - - 169 195 221 247 273 299 325
TBP - - - 19 21 23 25 27 30 32
Armax Arsenal I II III IV V VI VII VIII IX X
DMP Predator L - - - - - - 24 26 28 30
SHD H,T - - - - - - 342 378 414 450
TBP - - - - - - 46 47 49 50
Devlon Industries I II III IV V VI VII VIII IX X
DMP Explorer 5 7 9 11 13 15 17 19 21 23
SHD H,T,Q 56 72 88 104 120 136 152 168 184 200
TBP 4 6 9 11 14 16 18 21 23 26
DMP Liberator 5 7 9 11 13 15 17 19 21 23
SHD H,T,Q 56 72 88 104 120 136 152 168 184 200
TBP 4 6 9 11 14 16 18 21 23 26
DMP Survivor 5 7 9 11 13 15 17 19 21 23
SHD H,T,Q 56 72 88 104 120 136 152 168 184 200
TBP 4 6 9 11 14 16 18 21 23 26
DMP Thermal 5 7 9 11 13 15 17 19 21 23
SHD T 56 72 88 104 120 136 152 168 184 200
TBP 4 6 9 11 14 16 18 21 23 26
Elanus Risk Control I II III IV V VI VII VIII IX X
DMP Duelist 2 4 6 8 10 12 14 16 18 20
SHD H,T 70 90 110 130 150 170 190 210 230 250
TBP 0 0 1 4 6 9 12 14 17 19
DMP Guardian 2 4 6 8 10 12 14 16 18 20
SHD H,T 70 90 110 130 150 170 190 210 230 250
TBP 0 0 1 4 6 9 12 14 17 19
Elkoss Combine I II III IV V VI VII VIII IX X
DMP Assassin 12 14 16 18 20 22 24 26 28 30
SHD H,T 49 63 77 91 105 119 133 147 161 175
TBP 0 0 1 4 6 9 12 14 17 19
DMP Gladiator 12 14 16 18 20 22 24 26 28 30
SHD H 49 63 77 91 105 119 133 147 161 175
TBP 0 0 1 4 6 9 12 14 17 19
Hahne-Kedar I II III IV V VI VII VIII IX X
DMP Mantis 12 14 16 18 20 22 24 26 28 30
SHD H,T 84 108 132 156 180 204 228 252 276 300
TBP 20 22 24 26 28 30 32 34 36 38
DMP Predator - - - 18 20 22 24 26 28 30
SHD H,T - - - 156 180 204 228 252 276 300
TBP - - - 26 28 30 32 34 36 38
DMP Scorpion 12 - - 18 20 22 24 26 28 30
SHD H,T 84 - - 156 180 204 228 252 276 300
TBP 20 - - 26 28 30 32 34 36 38
DMP Silverback 12 14 16 18 20 22 24 26 28 30
SHD H,T 84 108 132 156 180 204 228 252 276 300
TBP 20 22 24 26 28 30 32 34 36 38
DMP Ursa - - - 18 20 22 24 26 28 30
SHD H,T - - - 156 180 204 228 252 276 300
TBP - - - 26 28 30 32 34 36 38
Kassa Fabrication I II III IV V VI VII VIII IX X
DMP Colossus - - - - - - 61 63 65 67
SHD H,T,Q - - - - - - 285 315 345 375
TBP - - - - - - 32 34 36 38
Rosenkov Materials I II III IV V VI VII VIII IX X
DMP Titan - - - 34 36 38 39 41 42 44
SHD H,T - - - 130 150 170 190 210 230 250
TBP - - - 26 28 30 32 34 36 38
Serrice Council I II III IV V VI VII VIII IX X
DMP Phantom - - - - - - 39 41 42 44
SHD T - - - - - - 266 294 322 350
TBP - - - - - - 59 60 62 63
Sirta Foundation I II III IV V VI VII VIII IX X
DMP Phoenix 2 4 6 8 10 12 14 16 18 20
SHD H,T,Q 49 63 77 91 105 119 133 147 161 175
TBP 20 22 24 26 28 30 32 34 36 38