I used to be against it, but... i have changed my tune on it, i am not saying i am totally for it, but i wouldnt think any less of a person becuase they had their dogs ears cropped, if it were the standard of the breed, and done at the proper time, (when they are very young).
My girl (Presa Canario) has her ears cropped and my boy (Rottweiler) has his tail docked.
However... i didnt choose this, the breeders were not letting their pups go to their homes until they were docked/cropped. And i prefer the look on them anyway.