Ignoring Dodge for the time being, you shouldn't prepare encounters depending on the abilities of the PCs.
What you should do is strike a balance between realism and good gaming.
If you PCs are in a village and attack someone in a bar, then they could expect to meet the full force of the Village Militia (6-12 men). If they defeat them, they may well end up being chased by a posse from several villages (10-20 men) or even by a company of soldiers (50 men). Of course, they won't always fight all of them at once, they might fight three or four at a time, kill them and move on to the rest.
As your PCs become more powerful, then a village militia unit won't be able to touch them, so they could, in theory, become bandits. But, then soldiers would come after them, or groups of bounty hunters, or angry Runelords, using standard escalation principles.
If they are fighting organised foes, base the numbers on what might reasonably be expected, If they attack a troll clan, they might fight 20 warriors, 40 trollkin spearmen, 100 food trollkin and 6 priestesses. Not all at once, but in organised groups. If they attack a Broo temple, they might meet a couple of hundred broos, in groups of various sides. Don't be afraid to match them against vastly superior forces, it just makes them think about the combat and how to proceed.
In RQ2/3, I always worked to the rule of thumb that PCs were as good as twice their number of lesser foes and were better than the same number of equivalent foes. So, face them with the same number of similar foes and the PCs would normally win. This is becuase of their enhanced combat abilities, superior tactical awareness and overall luck.
But, mob them with a zombie horde and see if they can take it, or will they run away screaming as they are crushed beneath a swarm of bodies?