Kaspersky Internet Security is surely better than Eset Smart Security but I still believe that NOD32 is better than Kaspersky AntiVirus.
Edit: @Batista I am not an arrogant type of boy and I respect everyone but can't tolerate a word against NOD32.
Imagine there are 90 computers in a LAB and every computer infected with Brontok and as soon a you insert your Pendrive, your pendrive gets infected and Folders are hidden and an executable file (with the same icon of a folder) is created. You need to open that executable and then access the folder. And moreover with Noonlight every file and folder is made a SYSTEM & Hidden file (also a .scr file is placed) and then you've to "attrib -h -s" at the command prompt (for every file and folder) as you are not having any File Attribute software at the moment (because of no Internet) which can fix this. NOD32 fixed all this.