A definitive answer to this question : A WL makes more money than an ML, period !

Forget about a popular ML vs an unpopular WL, the comparison should be based on the 2 professions, not 2 individuals. Individual's income can not be predicted, one might even find a sugar daddy before the other !

I've been told by a few girls who turned WLs from MLs, more money was the main reason they made the switch, and of course, they must be confident about their physical appearance !

And furthermore, they said ML's job is actually much harder, they said after the first day of work at a massage place, they were so tired that they couldn't close theIr fingers to hold a bowl of rice or apply the chopsticks at dinner time !