Dominions system is great for combat only. There isn't any skills systems. No evolution system (only 5 levels is short for a RPG). RPG isn't only combat.
So the dominions system is very inadapted in his actual state.
An advantage of the PFPV system is uniformity. All aspects are simply rule by skills. No strange system like D&D with many classes particularity, attack systems classe based, feats and so one.
The system only demand Two D6. For the caracteristics number, it is a good way to simulate racial and sex differences.
For the combat system, an experienced warrior must have skills in many weapons, and it isn't hard to obtain. The weapons skills haven't a hight difficulty, so evolution in these skills are quick. And it is logical than a specialized warrior aren't good with weapons wich he never uses. Futhermore, some skills can be altered, a system in a RPG is rarely without modification by the GM
For the dom magic system, it has a flow for a RPG: mage can't evoluate without massive vis (
Endoperez) quantity.