This is purely my personal opinion and I guess a lot will disagree with me :
Chrome does not function properly unless you add some extensions
Chrome extensions are being targeted by advertisers http://www.theinquirer.net/inquirer/news/2323930/google-cans-chrome-extensions-that-contained-malware
Whereas IE works straight out of the box and can be locked down even tighter. It has a popup blocker built in as well