I'd put the desirability hierarchy something like this, best to worst:

1) mixed labor (mental, physical)

2) moderate, varied physical labor

3) jobs that are mostly just being present and don't make you pretend to work most of the time

4) mental labor

5) jobs that are mostly just being present but do make you pretend to work most of the time

6) repetitive moderate physical labor

7) repetitive sedentary labor

8) hard physical labor

With 8 being at the bottom mostly due to typically being high-risk and coming with major mid-term harm to health.