Well first of all you need to consider most of these games you mention are played in sets. While its true anyone can win a single game against anyone else, its sort of a moot point since they aren't played that way.
Now in a set, the better player will practically always win
Interestingly, the only game played as a single game that would practically never be won by the lesser player isn't even mentioned in your list.
Besides being the game with the least luck factor in all of pool, besides it being the father of all games of pool, and besides it being the only game that should be used to determine a world champion for lots of the reasons you mentioned, its the greatest game in pool.
And it never even got mentioned. Another example of how the game of pool has digressed.
LOL :thumbup::thumbup::thumbup::thumbup::thumbup::thumbup::thumbup::thumbup:
well played