Flow Kendell, eh?
The BAe146 basically the slowest of all jets, with a average cruising speed somewhere in the region of M0.67 - the SAAB 2000 is actually faster. Don't believe what the airline mags tell you, 780km/h is not BAe 146 normal speed. Somewhere in the region of 700km/h or less.
In comparison, the CRJ would be flying that route somewhere in the region of M0.74-0.77, significantly faster. CBR-BNE isn't a very long sector (long being MEL-LAX), so there wouldn't be that significant a time difference.
It's a nice looking plane, cabin is small though. It's ok for short hops.
Performance wise, even though it a very impressive power loading on paper, most of the engines are only rated for that at 0°C, some at 15°C. Couple with a nice derate, it's only average at best, IMHO. You need pretty high Vspeeds as well in the CRJ, from my experience on MEL-LST.