LOL of course 3p has more plays than 4p. It has been the only arena available since a 2 week window when Catan was first brought on this site.
Since then there have been 4 months of 3p arena Catan. People naturally will play the Arena more than normal games. They can satisfy everyone if they rework their guru system and have a more revolving door of options especially for games with high traffic or when community members ask for a variety of options.
Again the issue is that once a game gets one set of options those "gurus" get chosen over and over so the rules never change. That isn't a good way to run something.
Since then there have been 4 months of 3p arena Catan. People naturally will play the Arena more than normal games. They can satisfy everyone if they rework their guru system and have a more revolving door of options especially for games with high traffic or when community members ask for a variety of options.
Again the issue is that once a game gets one set of options those "gurus" get chosen over and over so the rules never change. That isn't a good way to run something.