There is fun in slaughtering lower level peeps? hmmmm....I was enjoying the challenge.
If you move a character between campaigns you start at the higher level point. For instance if you take a character from Prophecies to Factions you'll skip what is essentially newb-ville so that you'll be fighting full level enemies from the start. The downside to this is that you'll miss a small part of the story that's explained in the newb area unless you create a character specifically for that chapter.
At least, that's how it worked with Prophecies>Factions. No idea if it's like that in Nightfall.
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