Various bug reports show that users are finding being asked which disks to use twice (filter + cleardisks) confusing. Most of these bugs are related to bootloader installation. As disks which are filtered out are not being counted in the BIOS drive order / numbering. There for I would like to suggest (as discussed on the list) to not show the filter UI (leaving exclusive disks empty like with a kickstart install / F-12) when the user selects basic storage.
This is fixed in anaconda-14.13-1, which is the next anaconda build for rawhide, closing.