Antivirus software, comodo

Here Im going to give opinion about anti virus software
Im using comodo internet security (free)
From here http://www.comodo.com/

If you are using kaspersky (need to pay). Im going to say yes kepersky is better
I have try bitdefender before this, still kaspersky is the best

If you want to use free anti virus software which is comodo
I going to tell you comodo has several classification in security

1. Anti virus
2. Internet security
3. Smart Defence+

what is this 3 things?

Antivirus
Is detect and remove virus
Its detect the virus when you open a folder or while performing a scan
After detect they will remove it
Not good antivirus software will not be able to detect a virus
Personally these comodo dont have a good antivirus so I dont install it

Internet security
It is a whole large topic with a purpose protect from Internet harm such as Hack, Spam etc etc. There is alot of way these guys do to hack so does security do to prevent. I install these feature in comodo

Smart Defense +
This is a new term in computer security. The base idea was a spam and telling you that these program abc.exe is running. Do you want to proceed? then you may decide yes or no.
Comodo are good enough to tell you that the program is safe. But still is depend on the situation. For an example, I was installing some game and they telling me is it?. If you are not computer literate you may suspect the game is a virus but most of the case, you know that what you do so you know that that is a game Im about to install so that was not a virus.
Basically this is the most important feature I need in my computer and the main reason why Im using comodo