No they're not Gus is 6'5"
Machida was LHW champion (undefeated at LHW) he also fought HW
Rashad was LHW champion (undefeated at LHW) he also won TUF the Heavy Weight Tournmanent
Vitor was HW and LHW champion.
You said height not reach.
Google their stare down picks. They are practically the same height. Gus is at most an inch taller.
They weren’t undefeated when they fought Jones.
They all fought at higher weight classes while the sport was still evolving and these awkward match ups stopped happening. BJ Penn fought at heavyweight. It means fuck all unless you consider the context of the fight.
They all ended up at middleweight because it was around their optimal weight class.
What middleweight is 6’4? Even if there are, they don’t have Jons wingspan. He’s a biiig boy.