On a recent project, I incorporated sounds for the most part from Propellerhead Reason, a Korg (sample/rom), and the P12. All digital lineup with only a sprinkling of analog.
While each synth performed their role, and Reason is arguably the true all-arounder technically in my opinion, the P12 stood out on every track as sounding more dynamic, more interesting - more 'pro'.
I found I had to 'force' myself to not rely too heavily on the P12, as there are just too many great sounding patches around every turn of the knob : )