My GF and I recently started playing together. We're leveling them together and have gotten our toons to level 21.
I tank using a pali and she heals using a shaman. My main was a priest and it was always important to have more intellect, spirit, and spell power. I've never leveled a leather wearing toon so i'm not sure what to expect gearwise. From what I've seen thus far we havent come across too many leather items that give bonuses to intellect or spirit yet but I think I remember a majority of the cloth gear giving bonuses that would help casters. I've done some research but havent gotten too far as comparing the two side by side.
Would it be a bad idea for her to use cloth gear that gives her bonuses in spellcasting attributes instead of leather or is it better for her to use the higher armor leather gear? Her toon is linked below.
Faustslady
Not sure if I did the link thing right. Just in case I'll just provide thelink below:
http://www.wowarmory.com/character-sheet.xml?r=Doomhammer&n=faustslady
We havent had a chance to do an instance yet but we may be doing one tonight. I'll keep you posted on how that goes.