1: if i give a named NPC a weapon will it stay with them or will the NPC eventually reset back to the default weapon even if i steal it from them? will the use shields or does that count as clothing for them as well?

2: who are the essential Followers that cant actually die or are there any? ie: serana

3: what is some effective but sixy looking armor on women in your opinion.

4: is there a full list of "Expendable" NPCs that are good kills for the ebony blade like beggers etc or people out of towns.

3. ancient nord armour.

1 - NPCs, no matter who they are, will always use the best weapons and shields you give them. Followers will always use the best weapons or armor.

2 - All are listed on the UESP. They are all protected and I believe, Mijoll is the only essential.

3 - sixy vanilla? There aren't any...

4 - Again... look at the followers listed in the UESP.

ancient nord and forsworn armour.

1: Yes, the NPC will default back to their weapon if you take the better one. Note: You will need a high Pickpocket skill to get the weapon back, as they have a higher weight count which makes getting caught easier.

2: If a follower is essential, they can not die, even by your own hand.

3: I find the leather armor is the best looking, but this is a subjective question. For all I know, you could have a steel fetish.

4: If you can kill them, they're expendable. Shop owners will generally get a replacement, though if you kill the second shop owner, you can no longer use the shop. Everyone else is fair game, as essential NPCs can not be killed.

Like I said...