You might want to refer to some articles written by quietman7, a Global Moderator here, and one of our foremost security experts at Bleeping Computer.
For an in-depth discussion of the issues, start with this article and scroll down to the subsequent articles to get a full explanation of the merits of "layered" security.
Personally, I use Bitdefender 2017 Total Security and Malwarebytes Premium. They provide the recommended level of "layered" security, as does the combination of programs that you have installed, and various other combos as well.
The real issue is not to have two or more anti-virus programs, or two or more anti-malware programs that have real-time security, because that will cause conflicts in your computer and might even make it more vulnerable.
I hope this helps. Have a great day.