jbrook i know what you are talking about many bridled kites are unpredictable in gusty conditions. But you're wrong to think all bridled kites are like that, it depends on the model, manufacturer and year, for instance, the long bridled envy's from 2010 through 2013 have a tendency to range through the wind window in gusty conditions, while the 2014 envy is remarkably solid in gusty conditions, this is because of a bridle and connection change. The north rebel I think is one of the most predictable kite, just as predictable as a c kite and handles gusty conditions better than any kite I have ridden but it is a 5 line kite so it's not for me. I know the wainman boss has a very solid feel in the air.
You want to make it just about C kites vs every other bridled kite but I think you must name names, every bridled kite is different. On the other hand, every C kite is more alike than different, every c kite is well powered in loops, incredibly predictable, handles well in gusts but of course not much depower.
There are some bridled kites from 5 years ago like the old 2:1 kites with the pulley bar they had incredible depower but were terrible in gusty conditions, paradoxical right but the kite was so laggy and hard to know what it would do that all the depower in the world doesn't help. so depower is meaningless unless you can predict what the kite will do. The range of types of bridled kites is enormous, there are just so many different models. That's why sometimes a C kite might feel better than a poorly designed bridled kite. What I like in a bridled kite for gusty conditions is a small bridle, no pulleys or sliders, rear connnections, a predictable feel, and the ability to hold its shape and not taco when it gets up over 40 knots. I still think it's hard to beat the north rebel for a gusty day, very old design but eats the gusts up a really solid kite.
I really like the new designs from the last year or so, the kite manufacturers have stepped up their game. the switch away from mini 5th to single center flagging means there is less design constraint now so they can shorten the bridles and give us more responsive better feeling kites.