I've used both BB7 and hope's and to be honest if you look after them there's not that much difference in them 
But i do love my hopes a lot more, I don't have to mess about with it half as much as i did with my bb7. 
Hope are also amazing with Warranty if anything did go wrong too. 
Both BB7's and Hope have there pro's and cons though. 
 
Edit: I used the new style BB7 and i'm using some fairly old mono trial calipers and the new tech leavers on my hopes. 
 
Dale