What are the Best Security Freewares(Antivirus/Firewall/Anti-Spyware)?

Which Free Security Softwares should I use to protect my computer? When rating them, remember a few things, it's not only based on their detection rate, it should be fast, light (important), easy to use and should not be annoying.

Antivirus: AVG, Avast, Avira

Anti-Spyware/Malware: Ad-Aware Free, HijackThis, Windows Defender, Spybot Search & Destroy

Firewall: ZoneAlarm Free, Comodo Firewall

(Name any other if left)

My Picks:

Avira, HijackThis, Comodo Firewall.

Does everyone here just use pirated anti-viruses(most of you probably do)? At least some people would have gotten sick of finding Keys etc.? Your advice does not have to be perfect, just give me your personal experience. I really need some advice regarding anti-spyware.