"I think that he could reasonably be ranked with Tommy Gibbons as a heavyweight despite the fact that Gibbons just seemed to have his number." Yeah, maybe, Gibbons definately had his number. "He (Miske) probably has the better names on his resume at that weight. " I would tend to agree with that statement, although at that point in time Gibbons was lighter so it didn't make as much sense for him to be fighing some of the guys that Miske was facing.
You might want to check your facts. The newspaper reports from the final Miske-Brennan bout state that Brennan was completely out of shape and looked to have thrown the fight. He was banned from fighting in the state for his performance and his purse was donated to charity...
Miske's blowout of Fulton may have been bigger than any single win Gibbons had, but Gibbons also crushed Norfolk who is generally credited with twice beating Miske (albeit accounts differ as to how decisive those wins were) and he is also credited with decisively beating Greb in 2 of their 4 fights (although they were officially no-decisions). Miske was a very good contender, but I'd say Gibbons in general seems to have been at least a notch better. But then, Gibbons was a damn fine fighter IMO, probably very underrated himself. However, I could possibly see a case for ranking Miske on par with Norfolk despite Norfolk reportedly having his number.
Miske was always considered a good and dangerous contender almost right up until he died, so it's hard to tell, from the outside looking in, when and how exactly his illness started to affect him. We can speculate, but only he knew the truth.
Gibbons clobbered Kid Norfolk in a Madison Square Garden main event in 1924 and therefore deserves to be looked upon "with suspicion" by historians.