Here are some things that don't copy currently :-
1) Custom Menu Structure
2) Custom Reports
3) Custom Bot Rules
4) Admin Report Suite Level Segmentation
5) Video Reporting Settings
Better still perhaps you could provide a bunch of check boxes so we can choose what get's copied over from the original report suite
It would be nice for Marketing Channels to copy over too. And possibly any SAINT import FTPs that the original is included in?
I also agree it would be nice to have checkboxes to choose what you copy.