Very generally speaking all narrow bodies will have a similar ratio of 1/2/3/4/5 day trips. 717 is great for commuters as it currently has the most commutable trips, but since you’re local that’s obviously not a concern. Between the 73 and 320, the 320 is a larger category in DTW and more movement. 320 is a pretty big mix of mostly domestic, whereas 73 is both domestic and Island flying.

Edited to add: If you really care about green slips, avoid the 717, just doesn’t get as many since it’s a small fleet and only two bases.