Pound-for-pound

Sugar Ray Robinson is pound for pound the best boxer ever.

Oakland native Ward is now unbeaten in 25 fights and can now claim to be one of the top few pound-for-pound fighters on the planet after a technically dazzling display.

A tin of tomatoes weighing 250 g and costing $2.50 is more expensive, pound-for-pound, than one weighing 500 g and costing $4 (as the former costs $1.00 per 100 g and the latter $0.80 per 100 g).

My gal is pound for pound sweeter than chocolate.