A good example of premium fixed sights can be found on many modern 1911s, such as my DW A2. Both the rear sight and the front sight can be moved in their dovetails for windage and if I needed an elevation adjustment, I could just go to a different height front sight or even rear sight. These fixed sights are as good as it gets in sights, fixed or adjustable, as far as acquisition and visibility. The jump right out at you when you aim the gun.
My woods carry 357 is my Kimber K6s revolver and it actually has the same type of fixed sight setup as my DW 1911 - big blocky, easy to see and fast to acquire sights, with the rear sight cut into dovetail and a pinned and replaceable front sight, both of which can be changed, if need be. Not that I've had to touch the sights on either gun. Both shoot to POA, perfectly.
Kimber K6s 3" Fixed sights done right


Even some of the old Ruger Single Sixes fixed sight models had a rear sight blade that was dovetail cut and could be drifted in the dovetail for windage. Those old fixed sight Single Sixes had decently useable fixed sights.
Lastly, even with gutter sights, there is a difference. My Cimarron/Pietta Colt clone has a square notch cut, deep and wide, at the back of the gutter for easier sight acquisition and visibility. Not as authentic as the Uberti Colt clones, but definitely an improvement in the ease of use category.

Bottom line is not to automatically dismiss a model with fixed sights, but definitely inspect before you buy.
