If your kids are out of diapers, you can still vote for what you used when they wore.
I am currently using cloth because I'm cheap and I don't want to be spending lot of money on diapers every month and it give us more spending money. But we only be spending some of it on washing them since we have to pay to do laundry but it's cheap and it's a lot cheaper than using a diaper service or buying disposables.
When I was a baby, I just used cloth diapers.
With my daughter, I used both cloth and disposable diapers.
Disposables were much more convenient to use when we weren't at home.
If your son ever goes to day care, note that most people don't know how to rinse out cloth diapers or maybe they just don't want to so if he poops, they will probably just put the entire diaper, contents and all, into a plastic bag for you to deal with when you get home.