Dealers that "knock" the competition are just showing their ignorance of the competition. Most of the time, I think you'd find the dealer has never even been on the competition. If he/she has, then it's just visciousness and I wouldn't fail to tell the dealer that I don't want to hear that, but only what his/her tractor offers me.
I agree, the comparison is not the 10 series, which would be a closer CK20 comparison.
Both tractors are good. I personally do not like Mitsubishi gas or diesel engines, but a lot of people do, so, of course I recommend the Kioti with Daedong engine. It's one thing I'm not worrying about going wrong with my tractor!
I like the layout of Kioti better, and feel the fit and finish is a cut above as well.
You simply need to get on both of these and decide which one feels the best for you. Are the controls in a comfortable location? Do you have enough leg room? Is the platform wide enough for comfort with your body type? Other than that, the best deal is probably the only other consideration.
John