Least resource consuming Antivirus for Windows?

LOL! Just noticed.... what a cheap bastard. Ah well, copy image location or just go to the site decadentlifestyle.net and enjoy the posts tagged "titty tuesdays"
LOL... we're lucky the owner is not redirecting the images to some dickroll
 


I'm still using Avira right now, but I'll have to switch to something else soon because they decided to make the new 2012 version incompatible with other software firewalls. They are now forcing you to use their new built-in firewall. I'm using Comodo for that though, and I generally don't respond well to hostile takeovers, so Avira is getting the boot.

That said, I'm open to other firewalls besides Comodo, even bundled ones like NOD32... Does anyone of you who is using NOD know how the firewall module compares? Or are you using NOD Antivirus only, with a different firewall?