User blog comment:KidLego09/Could B and Beardo Be Brothers?/@comment-24152851-20140915033818/@comment-27707921-20140915052109

To answer your question,

Dawn and Ella are similar as they are both friends with animals.

Justin and Alejandro are similar as both relied on their looks to manipulate other competitors.

Noah and Dave are similar as both are sarcastic, Dave a little bit less than Noah, however.