@jrw..... I use only the 'faithful' picture style and i shoot raw.....
I did try to use LR4/acr to convert the CR2 file without any adjustments whatsoever, did the same with DPP. Image processed by LR4/ACR looked a lot less saturated in terms of color as opposed to the one processed using DPP.... as for sharpness I have a hard time telling the diffrence