I only have a BCL myself so cannot offer comparative points.
But, I can say that the reputation some attribute to BCL "teens" getting nippy after being quite docile and then calming back down as they mature seems to be overstated if my female BCL is anything to go by. I will say that she did develop a very strong food response as she reached her "teen stage" but, has shown zero cage aggression, defensiveness or timidity. (A big thank you to Daybreaker and Evenstar for the advice to not give in and over feed the garbage disposal)
With my limited experience I have to say that I think few would be disappointed with a BCL although, Hog Island and Dumeril's owners seem to be equally enamoured with their snakes.