Something I've never been sure of is the amount of damage a weapon will do, using the weapon skills.

For example, are the Weapon skills damage incremental based on the quality of the weapon you're using? e.g. a lower quality bow using Poison Arrow will do less damage than a higher quality bow using Poison Arrow.

Or is it entirely dependent on the skill itself?

I think it is done via the skill itself.

I would love to see low quality-high quality differences!

There's two stats in the game that seem to directly improve damage with weapons and weapon abilties, or staffs and spell abilities: Weapon Power and Spell Power.It seems as if weapon power will boost your normal attacks and weapon skill attacks, while spell power will boost damage from staffs (destruction or restoration staffs) and any spells you use.Also, reportedly there are boosts to damage for each type of weapon/ability that come from investing points in magicka or stamina.

Your damage scales based on Max Stamina and Weapon Power. Hope that helps.

Cas