Physique Modifier VS Skin Modifier

I still wonder why some 3d artist using 3ds max use two different modifiers when rigging characters for production, most artist I have met in my wide association tend to go for the skin modifier rather than the  physique modifier, it confuses me because i learnt 3ds max using physique with the inbuilt tutorials shipped with 3ds max, and now I'm well versed in 3ds max as I have been able to rig characters for my animations and my films, this issue has been bothering for quite a while now, so these questions arose;

i.   is the skin modifier better than the physique modifier?

ii.  was the physique modifier built for beginners?

iii. is the skin modifier easy to use and stress free?

iv. is the skin modifier more efficient for production?

I ll like to hear your responses to the above questions.

Thanks.