I have absolute respect for Usyk, what a great champion. It is obvious the majority will vote in favour of Usyk because of his unbeaten run including beating Joshua twice, Fury twice and Dubois twice.
Parker is the last man standing. They have never met before but I am sure the boxer that beat Wilder, Zhang and Bakole deserves his chance. Parker has been patient. He lost back to back fights against Joshua and Whyte in 2018, then suffered a loss to Joyce in 2022. Since then, Parker has re-grouped and had six consecutive wins.
It was nice to see Parker in the ring congratulating and hugging Usyk after his win over Dubois. There was mutual respect between them I hope Usyk does not vacate the WBO belt in arrange a bout with a different opponent.
I also voted for Usyk to win. Most likely though the heavyweight division is no longer that stack and at least Usyk has almost clean up the division except for Parker obviously. And you are right, he had regroup and have been winning, specially his impressive win against the Chinese as he was able to weathered that fight as we all know that Zhang has knockout power.
And if my memory serves me right, he should be the mandatory challenger for Usyk, but he gave way for Dubois. Now, it's his time but I don't see anyone in the heavyweight division to beat Usyk though. You really have to be very fast and has power to overcome Usyk specially his southpaw stance.