I have created a
Blog defining the characteristics of the Best SPICE PCB functional simulator from my perspective.
This discussion thread is intended to provide you with a forum to express your opinions on covering the Characteristics which form the Best SPICE based PCB Functional simulator. Fell free to disagree with me or extend the characteristics I have offered.
While it would be best to avoid making simple statements like "Simulator XYZ is Best" I won't moderate out your product specific comments if you supply a foundation in terms of characteristics.