My point is that hype owns you. I don't see too many arguments in Cormier's favour. Satoshi Ishii is an olympian too, unlike Cormier also a gold medallist, and he failed miserably against Fedor, while being previously undefeated as well.
If Cormier had not beaten Silva, but ended up fighting in the final anyway, he'd be paying 10:1 right now - no one would even know who he is. If Cormier fights Silva again, you think the fight will pan out the same way? Don't get me wrong, Cormier is not bad, but he hasn't done enough in his short career nor has he faced anyone like Barnett before, to warrant too much confidence on my part that he could win.
Barnett has been around for more than 10 years, and he's only one year older than Cormier.
Barnett has fought the best of the best for the majority of his career. Cormier has not fought a single top 5 fighter yet. Cormier has never been in trouble. How does Cormier cope with adversity? How is his recovery? Does he have a chin? Big question marks. Barnett on the other hand has seen it all.
Barnett has beaten pretty much everyone he ever faced except Cro Cop, whom he would beat now in 10 seconds. Bad news for Cormier.
Barnett is a serial juicer, olympic style drug testing procedures would nail him for the 4th time without question. That's bad news for Cormier.
Barnett is top three if not higher skillwise of all heavyweights.
Lessons from recent history:
An undefeated hyped up UFC champ Cain Velasquez with only 9 fights defends his belt for the first time: lights out in the first round.
Hyped up UFC champ Brock Lesnar:
(ranked no.1 after a grand total of 5 fights) vs Carwin: turtle in round 1!
(ranked no.1) vs Cain: embarrassment, but I also saw... turtle.
(ranked no.3) vs Overeem: embarrassment and turtle!
Too much hype is no good.