Oh gezzz your on your own now. That question will start a whole argument. Again the need for a 3rd party firewall with Windows Vista, 7 and 8 is I nesassary. Are you behind a router with NAT? If so you do not need a 3rd party firewall. Other then that I'm out of here.
First of you should read up on exactly what a behavior blocker is and what a host intrusion prevention is. Then decide for yourself. All HIPS require uset intervention to be effective and also require knowledge of what is safe and what is not. A behavior blocker is mainly automatic based on the cloud.