Justin Cooper's most recent run has been impressive. Prophet has matured, got his wits about him, and put out some of the best content out there. He's proven it too, with tag title victories, the LL, and victories over some massive opponents. He's on the hype train, and as Prophet has mentioned, this is his goal. He wants the title. He craves the title. He needs the title.
However, one of the things about the hype train is that at some point, the hype is going to finally catch up with you, and consume you alive. Or, you'll run the hype train for so long, that the train runs out of fuel, and you'll slow down naturally. It happened with me as Eve Taylor heading into the Lethal Lottery, and my passion to win it was the same, maybe more, than Prophet's passion to win the World title. I got consumed by the hype train, and I failed. This is Prophet's biggest problem with Justin Cooper. Himself. If he can overcome himself, this is going to be a tough match for Yaz.
Mikey Stormrage has been on a constant roller coaster throughout his entire career, with a majority of his success coming from pairing up with another character, whether that be a partner, or in a hate-filled feud that takes Yaz to another damn level. Although Eve & Mikey haven't been featured together for the build-up in Kingdom Come, and the feud with Cooper hasn't reached the heights that his other feuds and matches (like Howard & Tastic), there is still plenty of material for Yaz to dig deep, get himself psyched up, and obliterate Cooper. It's going to be a specific set of material, but I'm not discounting Yaz.
Hype train tells me Justin Cooper will win, and I'm sure most people expect Cooper to win... but Yaz has all the material there to create a monster, and Cooper has a very good chance of coming up short because of the hype.