Editors can personalize the content inside content areas and XhtmlString fields.
Pages can be "dragged & dropped" into the content area in the same way as blocks.
So there shouldn't be any difference.
Or did I misunderstand your question?
On more thing you can do is to check Make this visitor group available when setting access rights for pages and files when you define a visitor group, and then set access right from the admin mode.
I think @Dejan is correct. Other way is to use security. So you can grant or deny access to a page for any visitor group. You can read more about it here:
Do we have any option to personalize the pages by visitor group which we can do for block.
Can any one reply me on tis please.