Using Mc Afee
Enterprise 8.5i / Virus&AntiSpyware + Firewall 8.5 with lifetime (Update) licence Version since 5 years.
No other pack i know ever allowed me to adjust, control or manage things how i need them. Sure, its a bit of work-through
to set all up, but good thing is, YOU CAN, and that in phenemonal depth. Especially the Firewall is scream.
I NEVER had a problems for 5 years, and only reinstalled my old system ONCE, because i screwed it up myself

.
In that 5 years there were times i considered and tested other products (which not to be honest)...but i sticked to it.