TL;DR: As for now (January 2016) it appears that you are better off with Bootstrap - to be specific - using the GitHub project - ng2-bootstrap.
Twitter Bootstrap
There are now 3 projects on GitHub that are trying to provide Bootstrap directives for angular2:
From these above, the first one appears to be the most popular and to offer most features. The last one provides only 2 directives as for now, the second appears to support 13 components (and counting) and the first seems to have 14. Also, ng2-bootstrap targets to support both Bootstrap 4 and 3, ng-bootstrap supports only Bootstrap 4. There is no information about Bootstrap compatibility with the last one.
ZURB Foundation
Unfortunately, nothing for Angular/Foundation integration as for now. Foundation 6 may offer some Angular 2 support - see here.
Angular Material
Unfortunately, the famous angular/material library is likely not getting angular2 support anytime soon. This issue on GitHub appears to provide the most recent information on that topic. Here is the repository for Angular2 Material Design official implementation.
I did not check any other frameworks. However, I just started a small project using ng2-bootstrap, so I may be able to provide some feedback later.