No "roll back?" Man, that's half the fun!
Well, I've been wheeling mostly manual so long that I'd just assume stay with it. It feels weird to me 4-wheeling with an automatic now.
I agree AT can make 4x4 a little easier, but who wants easy? Because of the extra skill and challenge, there's a special sort of pleasure with becoming one with machine... it really feels like you're doing something when wheeling a manual. Sure it's not scientific but I get a more satifying experience when I have that feeling of control.
And from what I understand, you can be in extreme angles with a manual transmission and not worry about failure.