Since your question is (most likely) going to require an answer from someone who owns both versions, you may want to search the user guide
Online User Guide http://help.adobe.com/en_US/premiereelements/using/index.html
-Page to download current PDF http://helpx.adobe.com/premiere-elements.html
Per John T's comments, our MOD, Steve Grisetti, has PrE on both platforms, plus has written many books on PrE. He would be an ideal person to comment.
Yes, both the Mac and PC versions include the same four ways to make a Premiere Elements slideshow.