The noticeably wider blade improves the overall handling of knife as well as adding weight that is beneficial when using the knife around camp. The most noticeable addition-apart from the increased size is the addition of serrations along the spine of the blade. The spine serrations improve the fighting capabilities of the Big Brother knife... back-slashes are wicked, and the double-edge makes it more difficult for an opponent to defend against or disarm you. The Big Brother has enough unsharpened spine along the last third of the blade for batoning. These serrations (NOT saw teeth) allow the knife to have a continuous plain working edge and still have the serrations along the backside to cut through tough, fibrous materials.
If you're looking for a Bowie-sized "utility and fighting knife" then you'd be wise to consider adding the Kabar Big Brother to your arsenal. Utility and fighting is what this knife was designed for, and designed quite well. Get one today at OsoGrandeKnives.com.