p4p, what is your definition?

[imp]

Can only a heavyweight be a true p4p?

Ali is considered the GOAT but not everyones greatest heavyweight boxer.

Only a heavyweight can actually be a real p4p.

Putting the tag on a welter or any lower weight is just fantasy.

That's one way to look at it for sure, flip side is that if you do entertain the idea of ranking fighters irrespective of size a HW could never be. That's why it doesn't mean much I'd say.

Who is your p4p fighter of the last ten years and state why and how that p4p applies to him (or her!)