I am using motorola cells since 8 years onwards and also this is my favorite brand in cell phones as per my experience Motorola cells are good in all point of view durability, battery back up, for looking everything is good for moto series cells.
I am presently using the moto x 2nd generation cell this cell very nice as compare other smart phones in this some thimg features has given this option you will not get other cells i.e gesture option is there With the newer version lolipop android and Qualcomm processor and Snapdragon quad-core processor is there, this is rough and tough cell and this cell is portable.in this cell we can hear smooth voice, looking simplicity.