I fly SW to Vegas. There isn't a single benefit to a SW 737 over any carrier's 175. They are a great plane.
Shoulder room, bin space
17" seats on SW v. 18"+ on the Embraer. I don't think the bin space argument flys either but I've never had any trouble with either one.
forgot about this, but the smaller diameter fuselage bugs me ON WINDOW SEATS. SHOULDERS NOT SEATS
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well, lucky for you you can't guarantee a window seat or any seat for that matter so you've only got a 1 in 3 shot at getting stuck with one. maybe if you check in exactly 24 hours before your flight you can get a good spot in the cow line and be able to secure that middle or aisle seat!