At the top of the picture below is a new Buck #408 Kalinga Pro in S30V (4.88" x .160" thick blade). While a bit upswept, a la a skinner, it is a quite useful size and style - and very comfortable in the hand. It comes with a well made leather sheath. The MSRP is $175, but careful shopping will land you one for ~$100. Made in the USA, too.
I also like my Bark River 'Fox River' and 'Gameskeeper', shown below as the third & fourth knives from the left. The Fox River is traditionally thought of as a 'bushcraft' knife - but only has a 4.25" x .170" A2 steel blade with a choil, where the Gameskeeper has a 4.5" x .215" A2 steel blade with a guard and choil. It also has a larger palm-swell, which fits my medium-large hands quite well. You can get Micarta handles, like mine, for <$150 - or spend a bunch more for some real beautiful handles... mine are users.
Below is the Fox River and a Northwoods Gladstone Drop Point Hunter in Cocobolo/D2 steel. That little guy feels great - and is a bargain for <$80. Like the similar background BRK&T knives, it is convex ground. Of course, it's even shorter - just less than 4" - but what a neat knife. Those UP MI knifemakers are great.
Of course, there is always the Buck #105 'Pathfinder'... it's a real 5"-er, but .125" thick. The best buy in Buck for 'bushcraft' for me has always been a 192 Vanguard with a 4.1" x .138" blade (420HC or S30V), but the 119 Special, <$34 at Wally World, see's some use even by Les Stroud ('Survivorman'). It's a 6" x .174" Bowie-style blade of 420HC, with it's fine point it's only Achille's heel. Great choices, all - and made in the USA.
Stainz