Its Qihu 360 (Internet Security )
Internet Security even got a HIPS ( dont know if TS got one )
(Only in 360 Total Security ) 5 Engines and its totally free and is EXTREME Lightweight
Engines included 360 Cloud Engine ( Offline and cloud ) / QVMII ( cloud ) / Avira and Bitdefender (Offline) ( beta state atm not all Included )
While internet Security got 3 engines 2 360 engines and bitdefender itself
Internet Security got a Sandboxie Like sandbox Hips and surf protection ( Best one and Lightest )
Screens
Even while scanning with 5 Engines it doesnt hogs much cpu and is Lightning fast ( Highest setting )
Main screen
http://360safe.com/totalsecurity.htmlQihu even gives free 36 terrabyte of cloud out ( still only in chinese )
Why i tell you that ? in alot of AV tests its atleast in top 3 ( android even top 1 )
and its free, faster and better as all other commercial Suites atm.
Just trying to make your pockets a bit more free and more secure PcAtm i like Internet Security more ( If you want more Features Like HIPS ( Asks you if programm X is allowed to modify Y ) Sandbox and more )
If you want more Passive Protections choose total Security it got way better protection and i guess the best atm among all