First, my home airport SGF is served by a mix of Skywest and Air Wis. United Express flights. I am equally satisfied with the service of each. Skywest uses 50 seat CRJs exclusively on this route. Air Wis uses a mix of BAE146 and 50 seat CRJ.
I seek out the Air Wis. BAE146 even if its a less convenient time for the confort and more importantly for having a restroom in both the front and rear of the plane. On CRJ, even the new CRJ700, there is no forward restroom so on a short flight, with remaing seated for takeoff and landing, and the cart blocking the aisle for drink service, it requires good bladder control. Although the CRJ700 has FC, it has a worse passenger to restroom ratio than other regional jets. With the "short flight" I might not care except that often the time sitting at the gate with the door closed or penalty box at ORD or in line to take off, exceeds the flight time so the "short flight" becomes a longer time in seat.
I disclaim that I work for BAE but not the part that does the BAE146 and ARJ.