Samson has beautiful cropped ears. I feel, and mom is biased (!), that he looks "regal" with his ears cropped. I think it really adds to his looks; however, I can admit that his ears were a tremendous amount of work. We taped and posted, and then he got tired of it after a number of months. This meant that no posting or taping would be allowed, by him, to stay put for more than one minute. At that point, we had to start using our hands whenever we were near him to "train" the ears to stay in position. This seemed like a loving act to him, and he had no idea we were "training" his ears.
I can say this, at one point, shortly after we had Samson's ears cropped, I felt guilty because we were bothering him so often with giving the needed attention to his ears (taping and posting). I do not think the ears caused him a lot of pain. They did look bad the first week, but with antibiotic ointment, they quickly cleared and healed. I would definitely look into the laser surgery if I ever decided to have another boxer's ears cropped. I have been told, by my vet who cropped Samson's ears, that the laser cropping is much less painful and heals much faster.
Delilah has natural ears. They are floppy ones. I think her ears add to her cuteness. So, there you are! I am in the middle on this!
If you want to have your boxer's ears cropped, you must do it when they are very young. I may be saying this wrong, but I think their ear cartilage gets tougher, and the ears will not stand up if the puppy is a little older and the cartilage has already toughened and/or broken down. I would do a lot of researsh on this, as you are, before you make the decision.
Good Luck!!!!!