If you leave them out on the counter in a bowl (which I may add looks nice) will cause them to loose their flavor and crispness.
Keep them in a vented bag in the crisper drawer to keep them fresher longer. I wash mine thoroughly and place them in a bowl lightly covered with some wrap w/holes at a easy to reach location in the fridge. This way when the kids need a snack they can help themselves and stay healthy at he same time.
The old saying has been found to be true:
"An Apple A Day Keeps The Doctor Away!"