My sights are set on a 24" straight bull barrel. From all indications they seem to be an excellent choice.
Flutes are nice to look at, but I don't especially have a need for them. Plus the other is cheaper.
But I plan on target shooting, and Varmint hunt with mine. For what you are talking about I would opt for a 22" Bull Barrel, just to shorten things up a bit.
Sorry to hear about your pains with the SuperLight, I guess some of these take a little more work than others. But the Bull Barreled 243's seem to have a very good reputation.
-Aaron