Have only had the dissappointment of riding a BWS....
'MY' opinion....
- No additional settings on the bar or the kite

,
- slowest turning kite i have ever ridden, based on the 12mtr BWS i have ridden, ive ridden a 14 catalyst, bandit, rpm, that will turn faster than a BWS 12mtr,

- Put it next to a Slingshot rev 2 the same size and u will be looking for the rev for a week. even though they are the exact same kite, a 12 is actually a 14,

, except the BWS has more bridles
- Very poor build quality (you get what u pay for i guess), had a mate get 3 replacements within 6-8 weeks of purchase. chicken loop and donkey are rubbish when your trying to trim the kite they just pop out, because trim line gets stuck in the cleat everytime.
+ low bar pressure for riding unhooked is nice. maybe a little bit to light. Would be nice to be able to adjust the bar pressure as desired
+ Black is by far the best kite colour, no stain.

Cant say i have ridden a rebel, but the rebel has been a reputable north kite for yrs which has been improved and improved over the yrs, so i dont think you could really compare the two.
Rant over!
Call me a Hater, Call me what u like. Once again this only 'my' opinion,
others might like some of the things i dislike