Naked overall is obvs for attention seekers. Its not beautiful but pure erotica. You can't even use the excuse thats it's comfortable; cause it chaffs on skin. The only acceptable use, is for vanilla baby making.
For wives and nymphs only.
Underwear with overalls likewise is purely for aesthetics rather than any practicality, if the thing you are doing requires an overall that is inherently heavy duty, your exposed skin is contradictory to overalls; Unless you use your overall as a smog/sacrificial clothing in painting or maintenance. In that case a thin/thick breathable full cover smog is still better than an overall in both hot or cold environments.
Truely the "I'm not like other girls egirl" of the industrial and art sectors. They say they are proper workers but just acting.
Thus by elimination; Overalls with proper clothes is the best. Overalls can act as extra pockets for everyday and specialised tasks thus the clothes wearing overall girls have a reason to be wearing them and may be more likely to have actual ambitions, personality and character growths. They don't put all their stats in just being eye candy. And for the right Gent; they can easily take off a layer just for that Gent
Sure if you just wanna drool and lick the first two might be for you but true Gents value much more than what the eyes can see.