So the question is -- what are the best techniques for keeping Lydia alive when I'm fighting bad things, especially bosses. So far I have Lydia in dragonplate with about 30-40% anti frost, fire, and shock enchantment (different items) and her armor has a health enchantment. I give her potions (minor healing and stamina) but I'm not sure if they help or not. She has a big ebony battleaxe with a 40 point fire enchantment and my old bow with respectable damage. She seems to like two handed weapons despite the fact that the book says she is a one-handed specialist. Not sure why. I also give her staffs which I tend not to use (like the familiar staff) which she uses all the time which tends to distract the bad guys from her a bit. Charges go down slowly on her weapons but she burns the staffs dry pretty quickly.
Ok, so what else can I do that I'm not doing to maximize her life expectancy? Thanks.
and Bethesda, work on the AI for followers PLEASE.

) so I'll have to try that. It svcks at lower levels since finding/smithing heavy armour for her when I play my light characters means she's usually stuck with her default steel armour until about lvl 17 or so. 