AIOs would certainly be the most "disposable-esque". Like dogboy and LittleICme, I'm mostly into prefolds, though. My favorites are from Changing Times Diaper Co., but those from Adult Cloth Diaper (All Together Diaper Co.) and Baby Pants are also popular among cloth-wearing ABDLs. I'll stop short of recommending any of those to you simply because they do represent a drastic departure from the kind of diapers you're familiar with, and so you really do have to commit to an adventure to go there.
Another pin-on option that I really like are the bamboo stretch diapers from Sweet Iris Designs. These are flat diapers for babies, and would generally be folded to a much smaller size if being used on a baby/toddler. For adult use, just stack a couple of diapers and put them on as you would a prefold. The stretch material is pretty amazing, and very accommodating of larger adult bodies. Very comfortable, too. As with prefolds, these diapers require a separate waterproof cover.
I haven't tried AIOs on myself, but there are members here who do like them, in particular the Dependeco AIOs, which are available in a variety of ABDL prints. AIOs aren't going to be as absorbent and leak-proof as a more traditional cloth diaper (prefold, flat + plastic pants), however my wife and I did use AIOs on our kids when they were babies, and we found them to be ok. The bigger problem, as I see it, is that waterproof covers (of any kind) tend to wear out quite a bit faster than the absorbent part of the diaper. If the cover is separate from the diaper, you just toss it and get a new one. If the cover is part of the diaper, ... bummer.