The answer to this is a matter of personal preference, because they all have their distinct advantages and disadvantages. Powered options are great because they can perform a myriad of tasks such as removing hair while also shaving off pills. They typically work very well, and require minimal effort on the part of the user. The downside to powered options is that batteries can run low and need replaced or recharged, which means you cannot use the unit until it has a full charge. Powered options can also run the risk of damaging delicate fabrics if the user is being careless or is in a hurry. Rollers and brushes don’t have the same amount of power as those with a motor, but there are quite a few advantages. The first advantage is that you are never going to run out of juice in the middle of wiping down a garment unless your hands suddenly fall off. These powerless options are also perfect for even the most delicate fabrics because there is no risk of pulling or tearing at the fabric, but is also means that they aren’t going to be able to cut off pills.