This is just me, but I like the layout of the ERJ's flight deck better. I haven't flown either of them, so I can't tell you about ergonomics in flight, the FMS, autopilots, etc. I do know that it's easier to move around in the ERJ. I don't bang a knee or my head climbing into the seat when towing the aircraft, and I don't feel like I'm in a box while sitting in the seat.