Including Firewall, Anti-Virus, Anti-Spyware as minimum, but the more additional function the better.

I had product review in relate to Norton 360 and the source said its the best, however im currently looking for any more issues like performance impact, compatability issues and all else. (Some claims Norton always have a bad case on performance impact and stability on computer)

To conclude this topic, which one should be the best of all opinion?