Publishing the link of our favorite articles is great way to share.
First, you can help the owner of the Hub to get traffic and hopefully other will do the same with yours,
and second, it can build our reputation as trustworthy source of great articles or informations around internet if they like the links we publishing, depending on what topic we like or all topic.
Being trustworthy source mean it will have better possibility to be click by others, including our own hubs too, which mean we will get more traffic. But if we only linked our own hubs, unless they like us or they really understand that we always come up with the best articles fresh from our mind, the possibility to get reputation as trustworthy source kind of limited into hmmm... says 30%? Maybe. Hehehe... that is what I think.