Anyone interested in a playable B5 mod, read here

[Suicide Junkie]

That was me with the armor.

Light armor: Best Hp/KT. Worst % absorption.
Heavy armor: not bad Hp/KT. Best % absorption.

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Heavy armor keeps your ship operational longer, since the internals take damage Last. Easiest to repair as well.

Light armor means your ship gets crippled faster, but remains intact and salvagable longer. Hardest to repair.

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The advanced armors include Emissive/crystalline damage reducing bonuses.
Level 1 lets you install only one component.
Level 2 lets you install up to two components.
Level 3 lets you install as many as you like.

The armors are all gridded, so there are multiple tech areas that will provide improved Versions (cheaper/stronger/more ability points)