I have a wide assortment of cloth diapers. Some I bought from stores or on ebay, some I got free for doing reviews, and some I found at garage sales. I don't have any pre-folds. I just do not like the hassle of them, but some people find those to be their favorites. When considering cloth diapers I advise you to get one of each style (all-in-ones, pocket, fitted, and pre-folds) and figuring out which ones you like best before buying your whole supply.
Two of my favorite diapers are pocket diapers. The covering has a small insert in the back to insert the "stuffing". Some people use pre-folds in the pockets but I buy the inserts that come with the diapers. You can double up on an insert for a heavy wetter or nap or bedtime.Fuzzi Bunz is my favorite pocket diaper because it is thin and doesn't add as much bulk as typical cloth diapers. The fleece which lines the diaper is so soft and the insert is an ultra absorbent material which seems to wick away all wetness from baby's skin. Fuzzi Bunz close with snaps which are adjustable, so fit all types of babies from skinny to ultra chub! You don't need to worry about leaking with these diapers.