Interaction Vs. Non-Interaction

Here's another user contribution...short and sweet, it strikes at a common divide between Euro and Ameritrash gaming.   --Ken B.

One of the things that seems to separate Ameritrash from Eurotrash is the presence of player interaction.  Most of the interaction in Ameritrash is of the direct form and most of the interaction in a Eurogame is of the indirect form.  Which one makes for the better game?