Summary: I have been doing tech work on computers since windows 3.1 and only consider myself avg. To be 4 and 5 level you better have experience and knowledge in advance server applications, advance networking (enterprise level) and be able to do core OS level of service. Being able to install updates, drivers and hardware does not make you an expert.
Pros: ESET has very good products. I have been using it and recommending it for several years. It much lighter on system resources then most other anti-virus programs out there. It also works very well with Malwarebytes Pro if you have it installed. They complement each other very well.
Summary: Have seen many people report that the A/V will cause issues with Steam, but have been playing steam games on Windows 7 custom built machine without any issues since purchase.
Pros: Very robust and thorough and uses very little resources. This is by far the best anti-virus owned. Love the feature how it scans removable devices before it actually will allow windows to mount to your machine, which can possibly infect your machine. And it will literally update every 30-45 mins. VERY EFFECTIVE A/V.
Summary: I tend to combine this and Malwarebytes Anti-Malware Pro on the computers I manage. Haven't had to clean an infection off of them since they were installed. The recovery disc creator needs additional windows components (AIK) to work. Could be easier to make, as a normal end user may not have the knowledge to work through it.
Pros: Lightweight, powerful, easy to manage.
Cons: Recovery disc creator could be easier to set up.
Summary: I've got about 10 licenses for this now. I install it on every machine before it goes out to family so when my mother-in-law calls in a panic because her machine has been taken over (per an e-mail, or a flashing web-site ad that says so), I know it's not true.