I prefer natual ears.
Rhonda is absolutely correct, there is nothing worse than a bad crop. You have to find a vet that specializes in cropping of your breed if that is your choice. It can not be a vet that does Dobes to do a Dane, etc. Each cropping for the breeds that are cropped is different.
Taping is another major issue. You can have a great crop and it can be ruined by not taping correctly or long enough. If not attended to on a daily basis you can also end up with infections which in some cases could cause the dog to lose part of their ears.
Natural ears are what God gave them and I like what he did.
Cropping started years ago to protect the dog during hunting and other duties that they performed. Keeping the ears from getting ripped during a hunt, torn by brush or an attacker whether it be another animal or humans.
Again though it is personal choice. Should a person want cropped ears they can not be done just anytime. They must be done prior to or no later than 12 weeks of age.
Dragon