The Corsair K70s media keys arnt mechanical and are unsymmetrical which looks horrible in my opnion. The K70 also has a USB hub built into the back of the keyboard which requires an additional USB cable that makes the cable bulkier and if you dont ever use the USB hub there will be an extra cable causing more clutter, not to mention a cable that bulky would look horrible sleeved.
I wouldnt consider the Logitech G710 for some of the same reasons as the K70. Its unsymetrical, bulky/ugly, Built in USB hub=extra bulky cable, non standard media keys.
Overall i would go with the Ducky Shine 3 easily.