Two Websites Ranking for the Same Brand and Primary Keyword

We have two sites currently ranking on page 1, militaryloans .com and yesomni .com. Engagement with the first site is stronger and is where most of the marketing efforts take place. Would it be more worthwhile to:
a) kill the site with lower engagement and migrate anything unique to the other, or
b) fine tune the focus of each site (ie. Yes Omni would be more for corporate advocacy and Military Loans would be the transactional/informational site.)
We feel that having both could be diluting…
Two Websites Ranking for the Same Brand and Primary Keyword

See original post by MyFishIsSick