No, Once Wlad decided to go with his version of the Floyd Mayweather defense-first boxing style he was practically unbeatable. I don't believe Joshua would have ever beaten a Klitschko who was in his early to mid 30s. I also think that Fury would have had less than a 1 in 3 chance to beat him. Usyk is a smart man and an intelligent fighter with high level skills. So was Dr. Steelhammer. Klitschko was a smart fighter and used his reach magnificently. He had very good power and a great defense. Usyk winning by decision would be very unlikely and I don't think Usyk would have ever knocked him out.
Prime Wlad beats both Fury and AJ. Wlad's stylistic kryptonite was bangers with a chin, which is definitely not Usyk. Usyk vs Wlad would become a boxing chess match, but I would lean towards Wlad, noting he has never faced a better boxer. It would not be surprising if Usyk completely outclassed Wlad. Check out stories of their sparring sessions.
Prime Wlad nope. He would have been one of the more competitive ones probably, but I can't see Usyk beating him. I favor him against 2014 and onward Wlad, and had a chance against late 90's early 2000's version.
Wlad with steward in his corner I think is practically unbeatable he wasn't the same fighter after steward died
Klitschko prime ended when he was 37 years old with Pianeta fight. He was looking great against Wach, and that was. Terrible against Povetkin, and from that point on, he was half the fighter he once was. Yeah obviously Manny death has a lot to do as well. He should have never appointed that s8*** Banks for his trainer, and pretty much train by himself. As far as a potential fight with Usyk. This ain't prime Usyk for me as well. I think he has declined at the very least a bit(quite a bit for me), and it's hard to say. Wlad with Steward always find a way, but Usyk also always have an answer. If the fight is 100% fair, aka no cheating involved, who knows. Klitschko in his prime has very, very solid cardio and knew how to pace himself, and had one of the best jab in the history of this sport, as well as top notch right hand, and insane left hook. Usyk also has his weapons, so again who knows. BTW as i'm a Klitschko fan i also had to be fair. He didn't look that mighty against Tony Thompson, which we all know was a southpaw. Corrie also has to be mention, no matter it was pre-Steward.
Usyk has a big chance. This version of Joshua is not that far behind a prime Klitschko really. 2017 Joshua was Pre prime and Wlad was post prime with bad reflexes and slower hands and feet. This Joshua looked much better Than the 2017 version.