I am new to mechanical keyboard and wanted to make sure that my first one is the best I'll ever use. My choices are the Corsair Vengeance K65, Ducky DK2108 and Steelseries 6GV2 Mechanical Keyboard.
Personally the ones I think are the most overrated as far as mechanical keyboards go are the Steelseries and anything Razer makes. This is the keyboard I have and I love it - it has full backlighting, Cherry Brown MX, volume controls, even two USB 3.0 ports: http://www.newegg.com/Product/Product.aspx?Item=N82E16823334013
Personally the ones I think are the most overrated as far as mechanical keyboards go are the Steelseries and anything Razer makes. This is the keyboard I have and I love it - it has full backlighting, Cherry Brown MX, volume controls, even two USB 3.0 ports: http://www.newegg.com/Product/Product.aspx?Item=N82E16823334013