Swatches Window:
There is space at the bottom of the swatches menu to have buttons for the swatch types rather than grouping them into drop down menu. It takes more clicks and mousing around than it did in CS versions...

Same goes for Rotating spreads. I need to do this often - It used to be in the root of the pages menu, now it's nested under page attributes. Less efficient...
A drop menu at the bottom of the pages window might make sense for this feature?

New CC Libraries menu... it looks nicer I guess but now I have to click back and then click the Library when before I simply clicked a drop down... less efficient!