You can't say they're not close seeing as they all just show blur speeds, they're no way you could say one is better than the other.
You really think Wolverine can run so fast that everybody would see him as blur?
He's moved so fast that he couldn't be seen at all. That's not even the point here. You can't claim an instance of Hulk moving at blur speed is better than another character doing the same unless there some context around it, like in some cases them moving so fast that everyone else appeared like statues
There is a difference between being quick and travel speed. Wolverine is maybe faster in combat, but in race he loses to Hulk.