I definitely see the merits of attachment parenting, but if I'd had to spend all night with my toddlers given my personality, I'd have been an emotional wreck.
They had all my time all day long, all my brainpower, my breasts...for goodness' sake, I needed my sleep to myself!
I always thought the barbaric part of Ferber was how long people made it take. Stretching the process out over days or weeks just seemed too painful to me. Torture! I never got that part of how people did it. "Do it or don't do it," I thought. But the one-night version worked like a charm for us.
I just reminded myself with each child that he was not hurt, and that if I were a toy and he were throwing a tantrum to get me, I would not give myself to him. That helped. Then I had a nice stiff drink to steady my nerves, and I turned on a fan to dampen the sound of the weeping and wailing and gnashing of teeth, while still allowing me to hear if something was really wrong with the child. (It wasn't.)
It was like taking a band-aid off. It hurt at the time, but when it was over, we were ALL happier. We all sleep better as a result. It was certainly easier to break a 16-mo.-old (or whenever we did it) of the "I need Mommy" habit than it is to break a 4yo of it.
But with that said, let me reiterate that I have great respect for those practicing attachment parenting. Actually, in virtually every way except sleep, I was practicing attachment parenting, too. But sleep was where I drew the line...
To each his or her own.