zthomas :
depends what type of surfing your into.. the porn links.. lots of trouble in that area.. tracking programs doing sweeps.. the self righteous hackers.. all willing to throw out thorns in your path.. what a bore..
well, I use 360 not exclusively because of the engines, I also use it because it show's a pop up EVERY TIME a program is messing with registry keys for example. the engines are just for offline detention. the registry thingy is also useful, for example: when you are installing a software, 360 will make a pop up and warn you that program X is trying to modify registry keys... this is useful when you just downloaded a program that without your concern is trying to install some third party programs (like downloaders do). so, if I want to install any program related to porn, lets say, 360 will pop up and tell me the name and location of the file that is trying to add something to the registry or installing something in background. it's all advantages with 360, it even has really low resource usage, I mean, 60-70MB of ram and almost no CPU use is just great, AV's like kaspersky waste way more RAM and CPU. it also has homepage lockers and all that stuff. I am glad to trade my paid AVG for 360. but this is personal opinion only. and trust me, porn websites are the least of my concerns, I download and see things worst than that, like accessing the deep web... and never got hacked