Event planners - BNC Event Show VS London Christmas/ Summer Party Show?

Hi there
I’m sorry if I posted this in the wrong section but wanted to ask and find out event planner’s opinion on which of these 2 events they go to most to meet new suppliers?
Which one is better and how they differ, if at all?

BNC Event show: http://bnceventshows.com/
London Christmas & Summer Party Show: https://www.londonchristmaspartyshow.com/