Red dog wasn't around for 2 chapters, you think Red dog need 2 chapters to catch a Luffy carrying Jinbe? If Teach didn't show up to kill WB and stop him from sinking the island, Red dog would be dead under the sinked Marineford. No evidence Red dog could still move to counter attack WB again but chose not to, he was paralyzed.
Mihawk was already famous during Roger execution, Shanks wasn't, and Mihawk is 4 years older than Shanks as well, why shouldn't Mihawk reach his prime earlier than Shanks? Another baseless headcanon that Mihawk wasn't prime.