What does the "CMS-linker link-style" option do?

[Cerulean]

In the TinyMCE Advanced tab there are two options for "CMS-linker link-style". What are the implications of choosing one option rather than the other?
I have a site to build that contains a large number of internal links and I'd like to understand this feature before I get too far in. Thanks.

[Dr.CSS]

One makes the link like so the link text...

The other  {cms_selflink dir="page alias" text="Text of link"}...

If you want to use images use the fist method, it works best...

[Cerulean]

Thanks, Dr.CSS. Is there any difference when it comes to moving pages in the menu hierarchy in the future? Are links made with the {cms_selflink} option more intelligent, or would both (or neither) linking method handle a moved page?

[Dr.CSS]

They should both work still as it seems to make relative links not absolute...