To me, when you drill down and realize that for an individual some pleasures are much "greater" than others in terms of intensity, duration, and parts of the body affected, you see clearly that some specific pleasures are much more desirable to you than others. All pleasure is pleasure because it is desirable, but all pleasures are not the same in every respect to all people at all times, or even to the same person at different times, and therefore as to specific characteristics, some pleasurable experiences can be more pleasurable (more intense, longer lasting, or affecting more parts of the body) than others.
I was reading some of the excerpts from #Philodemus, and came across this reference which supports the view that the scale of pleasure depends on the individual and circumstances.
Quotein "On Choices and Avoidances," Philodemus discusses how:
"Different circumstances and conditions of individuals affect their experience of pleasure" (Col. XII.7-14)