Diversifying Spring Weeks

I’m torn between a couple areas of finance. I have received a few offers for spring weeks, and have chosen ‘flagship’ areas of the bank when appropriate. 
 

When considering those that don’t have ‘stand out’ areas, should I diversify my area of preference (i.e. pick AM as I have already chosen IB for another bank) for greater breadth, or pick the same area. How does this change if one area of the bank is much ‘weaker’ traditionally than the other?

thanks!