I own a K70 with red switches and a K70 RGB with brown switches and I love them both. I have used Ducky before and they are quite nice as well. I think both are quite nice and you really can’t go wrong with either. I love the K70s for their programmability though. Meaning I can macro any key I want and have different profiles for them. And, if you’re going for “shiney” you can do a lot of cool color effects with the K70 RGB.
As far as feel goes though, they are both great keyboards and the feel really comes down to the switches rather than the keyboard manufacture.