Hi,
There aren't any bitbake recipes that come with the TI SDK for the AM335x so I'm not able to comment on the differences between the different recipes. The TI SDK uses the 'make' tool with Makefiles.
You can read this guide for better understanding of recipe files and then compare them yourself: https://developer.ridgerun.com/wiki/index.php/Creating_recipes_in_Arago
You can also ask your question in the BeagleBone community forums.
Best regards,
Miroslav