What is better: CSS hacks or browser detection?

Question

Commonly when I look around the Internet, I find that people are generally using CSS hacks to make their website look the same in all browsers. Personally, I have found this

Answer 1

I generally like to have a stylesheet for standards-compliant browsers such as Firefox and Safari and then use conditional comments to detect Internet Explorer and serve it an additional CSS file containing IE-specific fixes and overrides.