Now let's not discount the Buck 119 right off the bat, let's have a serious discussion about the matter. Simply because the KA-BAR has the better steel doesn't necessarily mean it's the better knife. The Fairbairn-Sykes fighting knife, the VG-42 Stiletto, and the M3 trench knife were all very good for their intended purpose as combat knives, but simply weren't designed for the general utilities of digging, cutting wires, opening cans, and opening crates that the KA-BAR was designed to be used for, so they lost out to a general duty knife. The same applies to this discussion.
The Buck 119 comes with a phenolic handle that's slippery in a sweaty hand, and needs hockey tape to counteract this. The KA-BAR comes with either a leather or Kraton G handle and are considerably more grippy, and less prone to slippage.
The Buck 119 has a 6", clip point, non-serrated blade. The KA-BAR can be had with a blade length of 5.25" to 8", with a clip point or tanto point, and with a partially serrated or completely smooth blade.
The Buck 119 weighs approximately 7.5 ounces. The KA-BAR depending on blade size weighs approximately 6.40, 11.20, and 12 ounces according to their website.
The Buck 119 is shiny steel. The KA-BAR is flat black non reflective.
The Buck 119 is hollow ground. The KA-BAR is flat ground.
These are the stats for the discussion as positives and negatives are addressed. Personally if we're talking about using a knife for purely combat-oriented purposes, I don't feel the 119 should be discounted outright, as the need for general utility work is secondary in nature and not exactly relevant to the discussion.
The Kershaw Ken Onion has a skinnier blade and the tip is more prone to breakage if misused, but that doesn't make it inferior to the Cryo.