Sky Raiders are way worse about the running thing. I still enjoy them but the 'joy' fades as they continue running. Oddly, I dont have near as much trouble with them when sweeping as I do actually in missions. Aside from the porters (who, like sorcerers, take off to Nederland every 5 seconds) the wing raiders seem to think running around, back and forth, like a chicken with their head cut off is a viable defense mechanism.
I like fighting 5th Column, especially on my PB (there are no wants in that enemy group, I think it predated the kheld code that spawns them in every enemy group a PB encounters), they are a nice easy straightforward group with very few surprised.