The reason why bookies see Izzy as a favorite imho is because they take into considerstion his past achievements more than his shape and mental preparation. I think you have forgotten how boring Izzy became when he got belt for first time. You can say this is because he was more cautious, but he defended the belt by UD, but not by total dominance and knocking out. Imho he did not want to risk, get his paycheck and chill. Isnt motivated to win. Imho he isnt motivated much to get belt back and clear whole division again.
Yeah but if you really look into his past performances, he wasn't really knocking guys out or having an optically dominant performances except for the first match up vs Whittaker, the one vs Costa and the Pereira one when he played possum. But most of his match ups were boring and low volume.
I guess it will depend on the line. If either DDP or Adesanya goes to 2.35 and up, it's prolly a value bet. But still dunno... A part of me wants to see Adesanya KO's DDP.
Izzy is only interested in a stand up fight which he thinks he has the advantage and it must be true. He will prevent Dricus from taking him down or get closer to him. Its a fair odds I think especially Izzy has been away for a long time but considering what he could do in the cage, 1.87 in his favor is good already.
According to few analyst there will be a KO in this fight, both of them are just eager to prove and they hate each other.
Adesanya calling UFC about their treatment to Ngannou, I think will make him another Dana's enemy in the future though.
He has said that he was already champ twice (probably talks about having belt and winning it back from Pereira), and belt itself isnt motivating him anymore. Now we have that big pause after his fight against Strickland, and might be that now the decrease of his career starts. I will pick DDP this time. Strickland showed that techniques of Izzy can be beaten with simple defence, add strong chin of DDP and I see a winner of this fight 
