Again I already covered this by showing that he DIDN'T get KO'd or stopped by ALL the other high level challengers he faced, proving he is durable if nothing else. You are just trying to make it a strawman argument by limiting the discussion to the only 2 times he got stopped. Nice try but that shit won't work on me. People don't normally make it through 12 rounds with Vitali Klitschko but Chisora did. He also went the distance with Danny Williams, Tyson Fury first fight, Robert Helenius, and Pulev. So no he doesn't get wrecked by champs when fights them as you claimed. That happened only twice. You have a childs mentality by sticking to your narrative that Chisora couldn't possibly be more experienced than Stiverne because he had more experience fighting top competitors.
You didn't explain shit earlier. Experience is gained from getting in the ring and fighting, fighters often say they learn more by their losses than their wins and I don't see why Chisora should be any different just because he's a HW and you are trying to do anything you can to avoid admitting that Chisora has more top level experience than Stiverne and by quite some margin.
Nothing you have said convinces me that Chisora wouldn't have a good chance of being the winner in a fight with Stiverne. Stiverne just got an easy path to a world title only having to beat Arreola. Big wow. Chisora has fought better opponents which is why he has losses.