Problem (as I see it) is two-fold:
1) Canon (and other makers) keep their RAW stuff secret... 3rd parites like adobe have to reverse engineer to use it, and they don't know what to do with some of the proprietary stuff embeds into the raw to help it display better. I suggest people bug Canon about this.
2) Adobe does sub-par camera profiling, apparently, or else does not wish to delve too deeply into the proprietary code to figure out what its doing. Many have reported this, especially with Canon cameras (reds tend to go orange in ACR for many of us.) Yet Adobe does not improve, while other converters don't display these color problems.
So until Canon shares some information and/or Adobe improves its Camera profiling; I'm guessing DPP will do better in terms of "pleasing colors" while Adobe will do better in its wealth of adjustment tools.

