[campfire]

I use McAfee home but after my computer getting infected I'm thinking about changing.

[ShadowSot]

I have Avast! at home. A good deal of the folks I know use AVG. I've heard some good things about SuperAnti-Spyware.
Malwarebytes is usually good if you have a bug that needs removing, not a active virus cleaner, though, just a scanner.
I've found Spybot Search and Destroy works pretty well, Ad-Aware used to be good, but I've been hearing bad things about it over the past year or so.
Best thing is, those are all free,though they do have paid versions.

We use Symantec here at work, it works ok. The paid version of AVG is ok as well, m'dad uses it at his business.

[Caesar]

I use Trend-Micro. I did have Norton but they didn't upgrade often