"it just dosent seem that any better than a SIG or HK etc."
For some folks it ain't. For some a wheelgun is the best. They aren't the best gun for everyone, no gun is.
For me it is the best.
The location of the controls make sense and are ergonomic. They are simple.
It is the most versatile handgun out there. It can be a 50 yard NRA bullseye target gun. It can be an IPSC compensated racegun with red dot sights. It can be a reliable home defense/ range gun, a full size duty gun, a fighting handgun, etc. All this and more with the change of a few parts. Grip don't fit you? It can be altered with a different mainspring housing, a thicker or thinner set of grips, a new grip safety, etc.
It is a safe gun that can nevertheless be carried three ways. Ready for use as the situation requires.
It is thin and flat. It can be made smooth like a used bar of soap.
DAO and DA/SA and the Glock type guns are useful for service use. They have their place, some have decent triggers. None of them have the single action of the 1911. It's trigger is the same from shot to shot, a great aid to accurate shooting.
It comes in various weights, sizes and calibers.
All this and more.
But it comes down to preference and the desire to learn and work at the gun. There are simpler guns to learn out there. But maybe none as rewarding.
tipoc