Arms inner part of the elbow is deformed in a circular pattern instead of a crease Basically, the elbow does not bend in its correct way. Instead, I'm getting this:



Note the subdivision surface value is set to 2. At subdivision level 0, I get a better (not perfect) result:



I can't tell if this is because of the positions of the loop cuts or the weight paint: 


I used Rigify to create this but wasn't sure if this is normal and I have to go edit every bone in weight paint mode. Is there a quicker or easier way to fix this?

(It's also easy for me to roll back and change the position of the bones and regenerating the mesh if needed)
Select your character in Object mode and in the Properties panel > Modifiers, put the Armature modifier above the Subsurf modifier, it should fix the problem.