Till now both Camera Raw and Lightroom have provided a means for calibrating ones own camera, or for creating a custom look, but this has always been a tedious processes (aided by scripts, such as those by Thomas Fors), and so not many people bothered. Therefore, whereas some people choose their raw processing program for reasons of workflow, convenience, or features, others choose a particular program because they believed that the colour rendition that it produced was superior, or at least more to their liking.
But – as they saying goes, that was then, and this is now.
Check it out here.