Another comparison review: http://biwastudios.blogspot.com/2010/02/broncolor-scoroa4-vs-profoto-8a.html
I'd actually recommend reading the other review linked at the end of your link too, it touches on many more aspects and some of them are far more important in my mind. Here's a couple that stood out to me...
"In use, we’d have to give the Profoto pack major points for speed and ease of use - both in actual controls and in intuitive use. Throughout the testing, every time we needed to change the settings on the packs, we simply changed the Profoto to what we needed. The Broncolor was always a matter of sitting down, reading through the menu and trying to figure out if you were doing what you actually wanted to do."
"And the fan noise on the Broncolor heads is not only loud, but it has an annoying pitch. Much of this, like the controls on a camera, you can get used to. However, working with lighting is a little different than working with a camera during a shoot. The lighting system is best when it’s invisible. There’s enough to worry about on a set without having to deal with things like tangled cords, annoying fans, and weird connectors. When I am working with a system for a few hours and feel a sense of relief when I turn the fans off, I know that there’s something wrong."
"This is a very important performance difference in any shooting that requires some horsepower. Sets, room shots, people, dancers, medium-scale explosions - you get the idea. If you’re looking for astoundingly crisp, frozen action of tabletop subjects where you can move the lights in and run them at minimum power and still retain decent depth of field, you’re probably going to want the Broncolor. If you have something bigger where you need more light, more depth of field and still need to try to freeze action, then the Profoto is going to give you noticeably better results."
"The Broncolor system has remarkable color accuracy within one small piece of the test range, in this case, ironically, at the highest power. It holds the place of both the highest accuracy and consistency, and the lowest when shot with the Color Control turned off. The Profoto system has a fairly consistent margin of error throughout its power range. It’s interesting that these conclusions run parallel to what we saw in the duration testing. One system, the Broncolor, is quite remarkable within some fairly narrow parameters, and the other, the Profoto, has a more generalized, more consistent performance throughout its working range."