I think Avast! is the best Free. NOD32 is the best paid.
Symantec Corporate is good but i have found that Avast! or NOD32 is jsut a bit better personally. That is just my opinion.
I do not accept support questions via EMail, PM, IM or my G+ page!
Phone: LG Optimus G Pro
Running: Stock JB from LG with Nova Launcher