hold em or real stud

[Game Theory]

I am trying to figure out which type of poker is the best to learn as far as skill playing the biggest role. David Sklansky says in "Sklansky on Poker" that he believes no limit hold em (as well as stud8 ob w/declare) has the most skill because decisions are not automatic, and decisions are critical as well.
In poker essays volume three, Mason Malmuth says that he believes that the best poker players in the world are the great stud players, and he emphasizes the large degree of skill involved in what he calls "real" stud, which is higher limit stud.
This is an important issue fir me, as i plan to spend a large part of my time over the yearts studying these games. I would love to hear from David and Mason.
Thank you