Well, I happen to like DC.
Good team player, gives good driver input, technically very proficient, and a very good team spokesman, which is critical in todays F1. His race pace is really pretty good, he never over-drives the car, and is always in control.
With the McLaren being so fragile this year, these attributes may serve him and the car well, and he will probably beat Kimi in the points battle because of them. He seems better able to read the car, than Kimi does, and he drives within its limits. Like you said, Kimi drives a harder race than DC, and is more likely to always push harder than he has to. I don't think he worries at all about the car, he just drives it, and if it breaks, oh well. Kimi has that "who cares, not my fault" attitude, that doesn't impress me.
Now if DC can just master this one lap qualifying!