Let me preface by saying that I've been using LR since version 2.x, and I prefer its intuitive interface, but recently I tried CO 7 Express ($100) and was thoroughly impressed. Note: it is somewhat unstable and crashes every so often on my Mac 10.8.2, but I put up with it because the RAW rendering is so great.
LR4 (Adobe Standard, Auto Everything)
CO7 (K5IIs Generic, Film Standard, Auto Everything)
LR4 (Adobe Standard, Custom WB, Manual Matching of CO7)
CO7 (K5IIs Generic, Film Standard, Custom WB, Auto Everything)
LR4 (Custom ColorChecker Profile, Custom WB, Manual Matching of CO7)
In general, CO7 has more saturated colors, albeit less life-like in some situations, but I prefer it more.
Full-size JPGs:
https://www.dropbox.com/s/tcccij7ygnj1p9j/CO7%20vs%20LR4.zip
Last edited by ploetzlich; 03-10-2013 at 04:05 PM.