Mostly same as above.
Although I rarely reload a previous save unless I have no option to (I died). Or if some weirdness occurs, like all of whiterun all of a sudden deciding I'm public enemy No. 1 and proceeding to gang bang me even after I have died. Weird one that. Not often it happens though, only twice. Once in Whiterun and a time before that in Dragonsreach.
I usually just let my followers rest, although I'll move them and lay them in a respectful position, unless they was idiots and got killed through stupidity, no honor in dying from your friends arrows/magics/shouts. So they just rot where they fall.

Although the game seems to know if I like my follower or not, I don't like Sven, but he never seems to die, I like Lydia, she seems to die every other encounter.

I'm sure there is a trope for that situation. (hell, there is a trope for every situation).
