But size isn't everything, otherwise we'd have Peter Crouch dominating the heavies.

It's how you use what you've got, big guys on the outside, small guys on the inside.

I've always considered p4p as the results a boxer has had compared to their skills. Almost like a points system where you get more points for beating a better opponent.

You simply cannot shrink or grow fighters as it's part of the whole package. You can't add a foot and a few stone to Mayweather and say if he was a heavy he'd clean up, it doesn't work like that. Same goes for the big guys, you can't shrink them and wonder how they would have then got on. Different weights need different styles and tactics and each boxer would have been COMPLETLEY different had they been born a different size.