Malwarebytes Antimalware - ..was, & still is, the free 2nd opinion scanner I continue to use for it's effective detection, reputation in past & current development, plus it is the reason why I'd first discovered (by accident) Malware Tips which popped up on a search!
Hitman Pro - Upon reading about Surfright's flagship scanner, here on MT, I was impressed by everything it found on our old XP, & it continues to reside on all our systems.
Emsisoft Emergency Kit - After (finally) heeding the Great exterminator20's sage advice, I've finally decided to get on board with EEK! I am impressed by it's file updates (always kept current) and love that it's portable too!
Zemana Antimalware - Although I've yet to use it, Zemana's highly acclaimed reputation (& the fact I have a key!) have me excited which makes it feel a lot like Christmas!
Additionally, I feel very secure using the service provided by virustotal.com with it's universe of developers' detection methods, it promotes confidence!
PS Thanks for all the positive input, my friends. Now, I'm going to take a closer look at Norton's Power Eraser too!