I've been using fuzzibunz ever since we made the switch from diaper service to laundering our own. I haven't done any research into other diapers at all, so I am not chock full of knowledge about other types at all. I will say that I am pretty happy with our fuzzibunz though. They are easy to launder as long as you are using a kind of detergent that doesnt stick to the fabric (we use Country Save powdered detergent with a 1/3cup of Simple Green and occassionally substitute Arm and Hammer Washing Soda for the Country Save)
I bought the first few new, not realizing we could do used so easily. Then I bought a bunch used here on the Trading Post. They are working really well for us.