currently using avg internet security 9.0 trial ver-30 days.--So far so good
Used norton 360, Norton Int secuirty 2009, 2010, etc, their pretty good, never let me down once..
NOD32: fastest anit virus ive ever seen...My old computer even runs fast with this. Although it has a less comprehensive firewall (doesn't scan webpages for viruses)...
Anti Malwarebytes: FREE, Extremely strong, very good virus/rookit scanner, imo. The paid version just offers automatic protection, instead of you just doing the updates and scans manually...Picked up some minor cookies norton didn't pick up...(most cookies r harmless anyways)...
Mcafee: the worst anti virus program ever: slowed the cr4p out of my computer...even my friend said the same...
tried Avast Free, no anit spam?, very basic look-so plain lol...
Trend mirco...tried it once, didnt really like the look of it and the name
...
Kaspersky: similar to Norton, but imo slower
AVG free: doesn't protect you agaisnt everthing...like rookits etc. only basic virus and spyware...don't rely on this program lol, use it when you have nothing left...
If your tight on money just use free 15-30 days trials from different comanies...thats what ive been doing recently trying to experiment which one I prefer...
NOD32 is not avaible at the shops, only online.
microsoft security essentials: havn't tried it, but looks good from the website.
BOTTOMLINE: They all do the same objective at the end of the day, so go with the one that you feel nicer with, more familiar with...
For me Norton/(360) has been tough to beat, It basically does everything you want a security program to do for you. The latest Norton 360 V 3.0, very comprehensive, but the interface is very user friendly imo. It even cleans your temp files and defrags..
Ccleaner: not a anti virus program, but very good cleaning program for your computer. cleans heaps of junk...
Hope this has helped
good luck