You beat me to the punch, was about to post the MX Green switch.
Ducky Shine 3 is a great keyboard. Highly recommend it. The look of the K70 with its black anodized aluminum frame intrigued me, but the fact that they limited it to MX reds destroyed that for me. I absolutely love the sound of the clicks of MX Blues. The tactile feedback is amazing and I wouldn't use a keyboard that didn't have tactile feedback. The springs are light and easy to press. I could even personally go for something with a bit more resistance. Unlike MX Browns you KNOW when you actuate on an MX Blue.
I am not annoyed by the sound of MX Blues, but others might be. It's a personal thing. All I can tell you is that you need to try them in person. I watched videos of the MX switches and was adamantly against blues because they seemed loud and obnoxious. I went to MicroCenter one day to get my 3570k and ud5h and tried out a few keyboards. The MX blues were the only switch I liked. The linear switches gave me no feedback and it felt like pressing the keys in mashed potatos. It felt terrible. I love the sound of the MX blues and the switches were decided upon. Just had to find myself a quality keyboard from there and the lighting modes of the Ducky made it an easy choice.
I actually meant MX Whites!! It was the MX Clears that were a distant 3rd and I meant NOT to mention. So for me MX Greens/MX Whites are the first choice for next switches (Since Whites are rare, I'll probably get a green) and MX clears would be for a quieter keyboard if I ever wanted one...maybe work.
Also, if anyone's interest Maxkeyboards is having a 50% off sale. I'm not interested, but thought I'd let everyone know. Check out the thread in Online Deals.