Does Mcafee Antivirus is the best antivirus?

No, its absolute crud and not worth a penny.. Go with Avast or AVG, and have Malwarebytes along the side.

Microsfots Security Essentials is pretty darn good for being free . . . What you need is a good Malware application. Malwarebytes is good.

McAfee is now the most used antivirus programs as we get new versions and updates on this antivirus program. It is also affordable provided with good variety of features, also it has very user-friendly interface.

Main disadvantage is that it is not the fastest program, as the scan duration is more.

It's best antivirus

McAfee antivirus support team can be contacted anytime
for quick help as they are available 24×7-365 days for instant customer
support; whether it is for query resolution or for problem fixation.