Which is the best security software of 2013?????

which is the best total security software against all possible malaware and virus threats??is there any antivirus or total security software that does noe cause system hog and does not uses lot of resources and still provides alot of security to the system against infection of viruses,malware,trojan horses etc??are there any site that compares antivirus software and provides maximum and acccurate data about those antivirus application......pleasse help me to find out this thing bcoz m looking to get a new total security software for my system......