i was wondering what the best guardian stone would be for a shield and sword build..i use a sword with light armour...i have block..smithing..and enchanting maxd..i was thinkin either the lady for the stam and health regen...or the lord stone armour and magic resistance..

Two solid choices, there.
Idea: Take the Lord Stone and wear Savior's Hide (Hircine daedric quest).
The combination will result in...
40% Magic Resistance (15% Hide, 25% Stone)
50 Pts Damage Resistance (Lord Stone)
50% Poison Resistance (Savior's Hide)
Add in your character's racial bonuses, with a few other enchants on boots/gauntlets/helm, and a solid Light Armour picture begins to emerge.

As for your shield, just use a torch.

i mostly rock stam enchants on my own armour i smithed...with two enchantments on them cuz i am max enchanter..unlimited shield charges and bashes wit a absorb stam weapon wit add fire damage...god mode...

i use lady cuz with a shield the best way to lvl it up is to bash people and defend which both take stamina

The atronarch is very good for a warrior who doesn't need magicka. Restoration spells that heal stamina is a much better choice than the lady stone, imo.

Doesn't sound as though you need stone or artifact, then.
Rock on, lil' sister, rock on.