Anantasec has posted a review/comparison of three major web app security scanners: AppScan, WebInspect, and Acunetix. This is an excellent-looking report! Just to save time for anyone curious about the results, AppScan lagged behind the other two in detecting vulns. Acunetix certainly scores well when you get a chance to use the AcuSensor piece. I personally have only briefly used/seen WebInspect. Basically I’ve never had a budget to get real hands-on with them.