What anti-virus do you use?

After trying multiple AV programs i am happy with the combination of Malwarebytes and Bitdefender. I was just wondering what AV everyone here uses?

extra detail: how long have you used it?
how reliable has it been?
price?
anything else to make people's decisions of switching AV's easier.

Malwarebytes: I've used it for about 5 months now, its caught everything that's tried, and the 1 or 2 things that slip through will be picked up on your next full system scan, and for pro it's 25 dollars.

Bitdefender total security 2011: about 6 months, has a nice gaming mode feature, easy to use interface, I'm not too sure on price since now 2012 is out, but 2012 is 80 bucks.

MSE and Malwarebytes. 100% free and have had 0 issues.

MOTOKO wrote:

MSE and Malwarebytes. 100% free and have had 0 issues.

This, both programs are relatively lightweight and do the job.

Above all, the best anti virus is common sense.

xxXSnip3R3lIt3N0Sc0p3zXxx wrote:

MOTOKO wrote:

MSE and Malwarebytes. 100% free and have had 0 issues.

This, both programs are relatively lightweight and do the job.

Above all, the best anti virus is common sense.

common sense 2011 is great. but yeah those aforementioned antiviruses are what i use, and physical firewalls are great too