I hear a lot of talk about buying genuine GM handles as the are so superior yet if they were so good we wouldn't be replacing them in the first place. Been doing auto body repair for over 40 years and these trucks and 90's Camrys are the only vehicles I see with broken handles on a regular basis. I suppose the real problem is actually the fact that doors have hinge pin wear making the doors harder to operate in the first place.
I've never seen a factory handle that broke under normal use on these trucks, however I have had to replace more than one on my Suburban that a thief busted out with a pry bar. Not really any fault of the parts.