Off all the regional jets I've gotten to see from the jumpseat (i've only ever flown the CRJ) I think the DoJet was definitely the best. The most spacious cockpit, great avionics, smooth design & the largest pax cabin (while fewer seats, it was a good bit more comfortable than the CRJ. Of course, it could outclimb a 737 but couldn't cruise nearly as fast as the others. And there were the mx problems at ACA burning through engines at an alarming rate.

Disclaimer - I'm not a regional pilot. I'm sure there are plenty of guys around here who could give you a much more knowledgeable response.